The electric force exerted by the wire on a proton is 6.89 × 10⁻¹⁰ N.
Given,
Charge per unit length(λ) = 1.95 C/m
And perpendicular distance (r) = 8.14 m
We know that Force exerted by the wire on a charged particle is:
F = qE
Where [tex]E = \frac{\lambda}{2 \pi \epsilon_{0}r}[/tex] (Electric field of an infinitely thin wire)
and q = 1.6 × 10⁻¹⁹ C
So, [tex]F = \frac{q\lambda}{2\pi\epsilon_0r}[/tex]
[tex]\implies F = \frac{1.6 \times 10^{-19}\times 1.95}{2\pi\times 8.85 \times 10^{-12}\times 8.14}[/tex]
⇒ F = 6.89 × 10⁻¹⁰ N
Therefore the electric force exerted by the wire on a proton is 6.89 × 10⁻¹⁰ N.
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a tank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes
The line tangent to the curve has an estimated slope of - 33.2 the line tangent to the curve has an estimated slope of - 33.2 gallons per minute. per minute.
How to calculate a tangent line's slope by averaging two nearby secant lines
Using the table's data and the secant line formula, we must infer the slope of a number of lines in this problem:
m = [f(q)-f(p)] / (q-p) (1)
The slope of the secant lines is given by: Use the slope formula for the two points on each secant line. (15, 250) and (5, 694): m = (694 – 250) / (5 – 15) = −44.4
(15, 250) and (10, 444): m = (444 – 250) / (10 – 15) = −38.8
(15, 250) and (20, 111): m = (111 – 250)/ (20 – 15) = −27.8
(15, 250) and (25, 28): m = (28 – 250)/ (25 – 15) = −22.2
(15, 250) and (30, 0): m = (0 – 250) / (30 − 15) ≈ −16.7
The equations for the secant lines are obtained by using the point-slope formula.
V − 250 = −44.4(t − 15)
V − 250 = −38.8(t − 15)
V − 250 = −27.8(t − 15)
V − 250 = −22.2(t − 15)
V − 250 ≈ −16.7(t − 15)
Part (b) Use the slopes of the secant lines going through the points closest to (15, 250), (10, 444) and (20, 111), to get the most accurate slope of the tangent line.
M tangent = −38.8 + (−27.8) 2 = −33.3
The slope of the tangent line at t = 15 is about −33.2825, which is consistent with the result in part (b). dV dt ≈ −66.7897 + 2(1.12190) t − 3(0.000222222) t 2 dV dt
t=15 ≈ −66.7897 + 2(1.12190) (15) − 3(0.000222222) (15)2 ≈ −33.2825
At the coordinates (x, y) = (15, 765), the line tangent to the curve has an estimated slope of - 33.2 gallons per minute.
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Active coping attempts with environmental stressors, when successful, generate the release of ___________, which shuts down or quiets the brain's septo-hippocampal circuit.
a. acetylcholine
b. dopamine
c. endorphins
d. norepinephrine
Endorphin release during active coping elements with stresses acts to shut down or quiet the septo-hippocampal circuit in the brain. This helps to lower stress levels and the activation of the stress response, both of which can have a favourable impact on overall health and well-being. Endorphins can help to reduce the long-term effects of persistent stress on the body and mind by decreasing the stress response.
When active coping attempts with environmental stressors are successful, endorphins are released in the brain, which aid in stress reduction and pain relief. Endorphins are a class of naturally occurring peptides that act on the body in the same way that opioids like morphine do.
The septo-hippocampal circuit of the brain is in charge of moderating the stress response as well as regulating anxiety, mood, and memory. When the circuit is triggered, stress chemicals such as cortisol are released, which can have long-term deleterious effects on the body and mind.
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the force of attraction between the sun and earth is called ___
Answer: The force of attraction between the sun and earth is called gravity
Explanation:
Gravity is the force of attraction between two objects that is proportional to their masses and the distance between them. It is the force that keeps the Earth and other celestial bodies in orbit around the Sun, and it is also responsible for holding the Moon in orbit around the Earth. Newton's law of universal gravitation states that the force of gravity between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that the larger the masses of two objects and the closer they are to each other, the stronger the force of gravity between them will be. The force of gravity is a fundamental force in the universe, and it plays a crucial role in shaping the motion and structure of celestial bodies.
Answer:
Universal Gravitation
Explanation:
The gravitational force of attraction between Earth and the sun is 1.6 1023 N
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in lynchburg, va, you see one of the zodiacal constellations crossing your meridian. your azimuth must be
in Lynchburg, VA, you see one of the zodiacal constellations crossing your meridian. Your azimuth must be 90 degrees minus the observer's latitude.
What is zodiacal constellations?A zodiacal constellation is one of the 12 constellations (also known as named star groups) that can be seen in the zodiac, a particular region of the sky.
The zodiac is the section of the sky that the sun, moon, and planets appear to travel along when viewed through the lens of astronomy.
It is possible to divide the zodiac into 12 parts, each of which is named after a constellation. These constellations fall into the category of zodiacal constellations. Aquarius, Pisces, Aries, Taurus, Gemini, Leo, Cancer, Virgo, Libra, Scorpius (Scorpio), Sagittarius, and Capricornus (Capricorn) are among them .
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suppose you drop a 10-pound weight and a 5-pound weight on the moon, both from the same height at the same time. what will happen? group of answer choices both will hit the ground at the same time. the 5-pound weight will hit the ground before the 10-pound weight. both weights will float freely, since everything is weightless on the moon. the 10-pound weight will hit the ground before the 5-pound weight.
Suppose you drop a 10-pound weight and a 5-pound weight on the moon, both from the same height at the same time. Both will hit the ground at the same time.
What does "weight" mean in physics?Weight is the gravitational force that pulls objects toward the centre of the Earth. The resulting force that pulls a mass toward Earth is known as gravity. In contrast to gravitational force, which occurs between any two masses, this only occurs between Earth and a mass. It gauges how much gravity is pulling on a body. Weight is calculated using the method w = mg. Since weight is a force, it has the same SI unit as a force, which is the Newton (N). On Earth compared to the Moon, an object would weigh differently as a result of gravity.
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this is a unit of heat used to express the amount of energy provided by food.
The unit of heat used to express the amount of energy provided by food is: the calorie
What are calories?Calories are a unit of energy measurement that expresses the amount of energy that a food can provide to the body when the food is digested and absorbed.
For example, if we want to know how many calories will you obtain by eating a energy bar that contains 26 g of carbohydrates and 5g of fat, we have that:
1 g of carbohydrates = 4 calories1 g of fat = 9 caloriesCalculating how many calories are in 26 g carbohydrates we have:
Calories (26 g carbohydrates)= 26 * 4 calories
Calories (26 g carbohydrates)= 104 calories
Calculating how many calories are in 5 g fat we have:
Calories (5 g fat)= 5 * 9 calories
Calories (5 g fat)= 45 calories
Calculating how many calories are in the energy bar we have:
Calories (energy bar)= 104 calories + 45 calories
Calories (energy bar)= 149 calories
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When you are driving with a trailer in tow and the road curves to the right, you should:a. Keep your vehicle in the center of your laneb. Move closer to the edge of the roadwayc. Allow more distance from the edge of the pavementd. Move your vehicle over into the oncoming traffic lane while traveling through the curve
When you are driving with a trailer in tow and the road curves to the right, you should move closer to the edge of the roadway during the traffic. Hence, the correct option is (b).
This will help ensure that the trailer does not swing out into the oncoming traffic lane while you are navigating the curve. Additionally, it is important to allow more distance from the edge of the pavement, as the trailer will require more room to make the turn. Driving in heavy traffic can be stressful, but there are some tips and strategies that can help make it easier. First, make sure to leave yourself plenty of time to reach your destination. This will help reduce your stress levels, as you won't be rushing to get somewhere. Second, try to stay in the center lane as much as possible. This will give you the most flexibility and maneuverability in traffic. Third, keep your speed steady, as sudden acceleration and deceleration can make it difficult to navigate traffic and can also be distracting to other drivers.
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A 1200-kg car moving at suddenly collides with a stationary car of mass if the two vehicles lock together, what is their combined velocity immediately after the collision?.
To determine the combined velocity of the two vehicles immediately after the collision, we need to find the momentum of each vehicle before the collision and the total momentum after the collision.
The momentum of the first car before collision = mass x velocity = 1200 kg x v₂
The momentum of the second car before collision = mass x velocity = m₂ x 0 (because it is stationary)
Total momentum before collision = momentum of first car + momentum of second car = 1200 kg x v₁
After the collision, the two vehicles lock together and form a combined mass of (1200 kg) + (m₂) = 1200 + m₂ kg
Combined velocity after collision = total momentum / combined mass = (1200 kg x v₁) / (1200 + m₂ kg)
Unfortunately, the velocity of the first car (v₁) is not given in the problem. Therefore, it is not possible to determine the combined velocity of the vehicles immediately after the collision without more data.
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What is the energy in joules required to shift the electron of the hydrogen atom from the first Bohr orbit tothe fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? the ground state electron energy is - 2.18×10 - 11ergs?
The energy required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit is 2.0928 × 10⁻¹⁸ J and the wavelength of the light emitted when the electron returns to the ground state is 9.5 × 10⁻⁷ m.
In ground state, n = 1, energy is given by,
E₁ = -2.18 × 10⁻¹¹ ergs
Energy of the fifth orbit is given by,
E₅ = E₁/5² = (-2.18 × 10⁻¹¹)/25 = -0.0872 × 10⁻¹¹ ergs
The energy required to go to 5th orbit = E₅ - E₁ = (-0.0872 × 10⁻¹¹) - (-2.18 × 10⁻¹¹) = 2.18 × 10⁻¹¹ - 0.0872 × 10⁻¹¹ = 2.0928 × 10⁻¹¹ ergs = 2.0928 × 10⁻¹⁸ J
To find out wavelength, we know the expression,
1/λ = R( 1/1² - 1/5²)
1/λ = R( 1 - 1/25)
We know the value of R as, R = 1.0973 × 10⁻⁵ cm⁻¹
1/λ = (1.0973 × 10⁻⁵) ( 1 - 1/25)
λ = 9.49 × 10⁻⁵ cm ≈ 9.5 × 10⁻⁷ m
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how many moles of oh– are required to raise the ph of 4.00 liters of 25 mm glycine, ph 1.90, to a final ph of 9.70?
To raise the pH of 4.00 liters of 25 mM glycine, pH 1.90, to a final pH of 9.70, 1.06 moles of OH- are required.
In this case, we are starting with a solution of glycine that has a pH of 1.90, which is very acidic. To raise the pH to 9.70, we need to neutralize the H+ ions in the solution, which can be done by adding OH- ions. The number of moles of OH- ions required can be calculated using the formula:
Δn = ΔV * ΔC
where Δn is the change in moles, ΔV is the change in volume, and ΔC is the change in concentration. Since the volume of the solution is 4.00 liters, and the concentration of glycine is 25 mM, we can calculate the change in moles of OH- as follows:
Δn = 4.00 liters * (10^(9.70 - 1.90) * 25 mM) = 1.06 moles
So, to raise the pH of 4.00 liters of 25 mM glycine, pH 1.90, to a final pH of 9.70, 1.06 moles of OH- are required.
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How do electrons flow through a light bulb?
When electrons pass through a battery, they gain energy, but when they pass through a bulb, they lose energy because it is changed into other forms, like light and heat.
What are three facts about electrons?The surface of the center is surrounded by positively attracting electrons.. Scientists may find it challenging to observe them because of how quickly they spin. They are the tiniest components in an atom and are drawn to the protons' positive charge.
What function do electrons serve in an atom?The opposite charges components about an atom are referred as electrons. All of an atom's electrons combine to form a negative electrical charge that counteracts the positive electrical charge of the particles in the elementary particle.
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two parallel conducting plates separated by a distance d are connected to a battery of voltage e. what is correct if the plate separation is doubled while the battery remains connected? select all that apply
The capacitance is unchanged, and the potential difference between the plates is halved. So the correct option is 1 and 4.
When the plate separation is doubled while the battery remains connected, the electric field between the plates decreases and the potential difference between the plates is halved. The electric charge on the plates remains unchanged, as the electric field is proportional to the electric charge and the capacitance. The decrease in the potential difference between the plates also results in a decrease in the capacitance.
The formula for the capacitance of a parallel plate capacitor is given by C = ε0A/d, where ε0 is the permittivity of free space, A is the surface area of the plates, and d is the distance between the plates. When the plate separation is doubled, the capacitance of the capacitor decreases by a factor of four, as C = ε0A/(2d) = ε0A/d / 2. This decrease in the capacitance is due to the increased distance between the plates and the decreased electric field between the plates.
When the plate separation is doubled while the battery remains connected, the potential difference between the plates is halved, the electric charge on the plates remains unchanged, and the capacitance of the capacitor is unchanged. The decrease in the potential difference between the plates and the decrease in the capacitance demonstrate the fundamental relationship between the electric field, the potential difference, and the capacitance in a parallel plate capacitor.
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Complete question :
Two parallel conducting plates separated by a distance d are connected to a battery of voltage E.What is correct if the plate separation is doubled while the battery remains connected?
1. The potential difference between the plates is halved.
2. The electric charge on the plates is halved.
3. The potential difference between the plates is doubled.
4. The capacitance is unchanged.
5. The electric charge on the plates is doubled.
Neglecting the size of the ball, determine the magnitude va of the basketball's initial velocity and its velocity when it passes through the basket. Ans: VA- 11.7 m/s Ug = 10.8 m/s 0 - 20.7° m -10 m
The given information provides some of the variables needed to calculate the magnitude of the basketball's initial velocity and its velocity when it passes through the basket. To solve for these velocities, we will use the equations of motion for a projectile under constant gravitational acceleration.
The magnitude of the initial velocity (VA) can be found using the equation:
VA = √((Vg^2) + (Ug^2) + 2 * a * h)
where Vg is the final velocity, Ug is the vertical component of the initial velocity, a is the acceleration due to gravity (9.8 m/s^2), and h is the vertical height of the ball's trajectory.
We know the final velocity (Vg) from the given information: Vg = 10.8 m/s.
The vertical component of the initial velocity (Ug) can be found using the equation:
Ug = Vg * sin(Θ)
where Θ is the angle of the trajectory.
We have the angle of the trajectory (Θ) from the given information: Θ = -20.7°.
Now that we have all the variables, we can substitute them into the first equation to find the magnitude of the initial velocity (VA).
The velocity of the ball when it passes through the basket (Vb) can be found using the equation:
Vb = √((VA^2) + 2 * a * (h - d))
where d is the distance from the basket to the ground.
We have the distance from the basket to the ground (d) from the given information: d = -10 m.
Now that we have all the variables, we can substitute them into the second equation to find the velocity of the ball when it passes through the basket (Vb).
In conclusion, by using the equations of motion for a projectile under constant gravitational acceleration, we were able to determine the magnitude of the basketball's initial velocity and its velocity when it passes through the basket. The magnitude of the initial velocity was found to be 11.7 m/s, and the velocity when it passed through the basket was found to be 20.7 m/s.
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a person knows the solar time on the prime meridian and the local solar time. what determination can be made
The determination that can be made based on the person's knowledge about the solar time on the prime meridian and on the local time is the longitude at which the person is located.
Solar time is a term that refers to the circulation of the passage of time based on the Sun's position in the sky. There are several types of solar time: apparent solar time and mean solar time.
Apparent solar time is the solar time based on the sun as seen by an observer on Earth. Mean solar time is the time measured by observation of the Sun traveling at a uniform apparent speed (instead of at a slightly varying speed depending on the seasons). Solar time on the prime meridian is mean solar time.
When one knows the current solar time on the prime meridian and the local solar time, one can figure out the longitude location of Earth they are in right now. The location would be based on the difference in time between both solar times.
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type v construction buildings may have a veneer of stucco, brick, or stone that:
Type V construction buildings may have a veneer of stucco, brick, or stone that is used to provide a decorative or protective finish to the exterior walls.
The veneer can improve the appearance of the building and provide a barrier against weathering, moisture, and other environmental factors. The veneer is typically applied to a wood-framed structure, which is the most common type of construction for Type V buildings. The veneer may be applied directly to the framing or to a separate layer of sheathing, such as gypsum board or plywood. Type V construction is known for being versatile and affordable, and is often used for a wide range of buildings, including residential, commercial, and institutional structures. The use of a veneer in Type V construction can help to enhance the appearance of the building and increase its durability, making it a popular choice for many building projects.
The complete question is:
What is the purpose of having a veneer of stucco, brick, or stone on Type V construction buildings?
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what wilson cycle stage would cause the orogeny and uplift hypothesized by hutton
The Wilson Cycle stage that would cause the orogeny and uplift hypothesized by Hutton is the collision stage.
The Wilson Cycle is a geological model that describes the creation, destruction, and renewal of supercontinents over time. It is named after J. Tuzo Wilson, who first proposed the idea in the 1960s. The Wilson Cycle consists of three main stages: rifting, oceanic spreading, and collision.
During the collision stage of the Wilson Cycle, two tectonic plates come together, resulting in the formation of a mountain range. This collision is caused by the subduction of one plate beneath another, which results in the uplift of the overriding plate and the creation of a mountain chain.
Hutton, a Scottish geologist, believed that the Earth was shaped by slow, gradual processes over a very long period of time. He hypothesized that the uplift of mountains, such as those in Scotland, was caused by tectonic activity. This idea was later supported by the Wilson Cycle model, which suggests that the collision stage is responsible for the creation of mountains and the uplift of land.
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Which of the following could cause an acceleration?
A balance between two forces
A balance between three forces
An imbalance between two forces
Zero forces
According to Einstein, an item will just accelerate if another force is operating on it that is net or imbalanced. An item will accelerate when an imbalanced force is present, altering its speed, direction, and
What does a force mean in science?This kind of force can be described as a push or even a pull, which is perfectly appropriate. A force does not "exist in" or "contain" an object. A force from that other can exert pressure on something. The concept of the a force does not distinguish between living creatures and inanimate objects.
Which types of force are there?When an object interacts with another, it experiences a push or pull that is known as a force.
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what happens to the old woman in fahrenheit 451
The old woman in Fahrenheit 451 starts a fire, which eventually leads to her death.
"Fahrenheit 451" is a novel written by Ray Bradbury, which takes place in a future society where books are banned and "firemen" burn any that are found. The main character, Guy Montag, is a fireman who begins to question the society's beliefs and eventually joins a group of rebels who strive to keep books and knowledge alive.
In the novel, there is an old woman who refuses to evacuate her home as the firemen arrive to burn it down. Instead, she stays inside and deliberately starts a fire, which eventually leads to her death. This act of defiance symbolizes the importance of books and knowledge and serves as a warning about the dangers of censorship and the suppression of ideas.
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if a beam of radiation containing 1000 x-rays is spread out over a square field that measures 10 inches long and 10 inches wide, what is the concentration of x-rays per square inch?
By dividing the quantity of x-rays by the total field area, it is possible to determine the concentration of x-rays per square inch. As a result, there are 10 x-rays per square inch when 1000 x-rays are divided by 100 square inches.
High energy, short wavelength electromagnetic radiation is what X-rays are. Since their discovery in 1895 by Wilhelm Conrad Roentgen, they have been applied in numerous fields, such as cancer treatment and medical imaging. X-rays are used in medical imaging to create images of the internal anatomy of the body, including the bones and organs, to aid in the diagnosis of illnesses and injuries. X-rays are used to cure cancer by destroying cancerous cells and reducing tumour size. X-rays can also penetrate a wide range of materials, which makes them valuable in a number of other industries like industrial inspection and security scanning. However, prolonged exposure to X-rays can be hazardous, cause tissue damage, and raise the risk of developing cancer.
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we have two waves of light, a and b. wave a has a higher frequency than wave b. then wave b must have:
We have two waves of light, a and b. wave a has a higher frequency than wave b. then wave b must have a longer wavelength than a.
What is Wavelength ?Wavelength is a measure of the distance between consecutive peaks (or troughs) of a wave. It is a fundamental property of a wave that determines its character and behavior. In the case of light, wavelength is the distance between consecutive peaks or troughs of the electromagnetic wave, and it determines the color of light.
Longer wavelengths correspond to red light, while shorter wavelengths correspond to blue and violet light. The entire range of visible light spans from violet with the shortest wavelength to red with the longest wavelength.
If wave "a" has a higher frequency than wave "b", then wave "b" must have a lower frequency than wave "a". The frequency of a wave is defined as the number of oscillations or cycles of the wave that occur in a given amount of time, usually measured in Hertz (Hz).
So if wave "a" has a higher frequency than wave "b", this means that wave "a" is oscillating more times in a given period of time than wave "b". This also means that wave "a" has a shorter wavelength than wave "b".
Therefore, We have two waves of light, a and b. wave a has a higher frequency than wave b. then wave b must have a longer wavelength than a.
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approach to sports would be an analysis of how sports reflect social inequality.
An approach to sports that focuses on analyzing how they reflect social inequality would examine the ways in which sports intersect with and perpetuate larger patterns of inequality in society.
This approach would look at factors such as the unequal distribution of resources, access to opportunities, and representation in various levels of sports, including participation, coaching, and leadership positions. It would also consider how cultural and institutional factors, such as historical biases and discrimination, influence the experiences and opportunities available to different groups within sports. This analysis would likely take into account issues of race, gender, sexuality, class, and other forms of social identity and how these intersect to shape experiences in sports. This approach to sports would aim to shed light on the ways in which sports can reinforce existing social conflict approaches and the potential for sports to challenge and change these inequalities. The goal would be to better understand the complex relationships between sports, society, and inequality, and to explore ways in which the sports world can be made more equitable and inclusive for all individuals.
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A disk of radius 2.5 cm has a surface charge density of 5.3μC/m² on its upper face. What is the magnitude of the electric field produced by the disk at a point on its central axis at distance z = 12 cm from the disk?
As a result, the magnitude of the electric field at z = 12 cm from the disk is around 2.46 x 10^4 N/C.
What is electric field?The physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them, is known as an electric field. It also refers to the physical field of a charged particle system. An electric field is an area of space in which an electrically charged particle or object would experience force. A vector quantity, an electric field can be represented by arrows pointing toward or away from charges.
Here,
The electric field produced by a uniformly charged disk of radius R and surface charge density σ at a point located at a distance z from the disk along its central axis can be calculated using the equation:
E = kσ / z,
where k is the Coulomb constant (k = 8.99 x 10^9 Nm^2/C^2).
Converting the surface charge density to C/m^2:
σ = 5.3 x 10^-6 C/m^2
Substituting the values in the equation:
E = (8.99 x 10^9 Nm^2/C^2) (5.3 x 10^-6 C/m^2) / (12 x 10^-2 m) = 2.46 x 10^4 N/C
So, the magnitude of the electric field at the point z = 12 cm from the disk is approximately 2.46 x 10^4 N/C.
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how much does 1 gallon of water weigh
One us gallon of water in the United States weighs approximately 8.34 pounds.
What is the concept of a gallon?
The concept of a gallon as a unit of measurement dates back to the Middle Ages in England, where it was defined as the volume of eight pounds of wheat. This concept was later adapted to measure other liquids, including water.
In the United States, a gallon is defined as 231 cubic inches and, as a result, one gallon of water weighs approximately 8.34 pounds. This unit of measurement is widely used in many countries for everyday items such as gasoline, milk, and drinking water.
It is also commonly used in cooking, particularly for recipes that call for large volumes of liquids.
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if a ball is thrown straight up with an initial velocity of 15 m/s, what will its velocity be after 2.0 s?
If a ball is thrown straight up with an initial velocity of 15 m/s, its velocity be after 2.0 s will be 34.6 m/s
In Newtonian mechanics, equations of motion specify how a physical system will behave in terms of how it will move over time. Equations of motion are mathematical formulas that describe a body's position, velocity, or acceleration in respect to a certain frame of reference.
The ball would accelerate due to gravity,
a = g = 9.8 m/s²
Using first equation of motion:
v = u + a t
where
Initial velocity of the ball, u = 15 m/s
final velocity of ball, v
Time, t = 2.0 s
v = u + a t
v = 15 m/s + 9.8 m/s² × 2.0 s = 34.6 m/s
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A particle travels to the right along a straight line with a velocity v=[5/(4+s)] m/s where s is in meters. Determine its position when if when t = 6 s if s = 5 m t = 0.
The position of the particle when t = 6 s if s = 5 m, t = 0 is calculated to be 9.58 m.
We know that the position is the anti-derivative of velocity. So, to find the expression of the position at time t, we integrate the velocity:
s(t) = ∫ v(t) dt
s(t) = ∫ (5/(4+t)) dt
s(t) = 5 ∫ (1/(4+t)) dt
s(t) = 5 ln(4 + t) + c
We use the beginning condition that s = 5 m when t = 0 to solve for the integration constant c.
s(0) = 5 ln (4+0) + c
5 = 5 ln (4) + c
c = 5 - 5 ln (4) = 1.93
So the displacement expression is,
s(t) = 5 ln (4+t) - 1.93
Thus, when t = 6s, the position is
s(6) = 5 ln (4+6) - 1.93 = 9.58 m
To solve this problem, the velocity function should be v = [5/(4+t)] m/s.
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the digital sign outside a local bank reports that the temperature is 44 °c. what is the temperature in degrees fahrenheit?
If the digital sign outside a local bank reports that the temperature is 44 °C, the temperature in degrees Fahrenheit = 111.2°F.
Temperature is measured using the Celsius and Fahrenheit scales. On the centigrade scale, the temperature will be given in degrees Celsius. On the Fahrenheit scale, temperature will be expressed in degrees Fahrenheit. The relationship between Celsius and Fahrenheit is proportional. Both have different water freezing points and adhere to the various unit differences between each scale.
The following equation can be used to convert between Celsius and Fahrenheit:
F = (9/5 x C) + 32
Hence,
(9/5 x 44°C) + 32 = 111.2°F
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4. Determine the kinetic energy of a 800-kg roller coaster car that is moving with a
speed of 20.0 m/s. KE=0.5mv²
Answer:
Below
Explanation:
KE = 1/2 m v^2 just plug in the numbers given in the Q
KE = 1/2 (800 kg) (20 m/s)^2 = 160 kJ
What type of gaussian surface is best to determine the electric field from a large (ignore edge effects) sheet of charge?A. A box either above or below the sheet. B. A box that straddles the sheet of charge C. A sphere either above or below the sheet. D. A sphere that straddles the sheet of charge E. A cylinder either above or below the sheet.
The easiest way to extract the electric field from a big sheet of charge is to use a cylindrical gaussian surface. The correct option is E.
The easiest way to extract the electric field from a big sheet of charge is to use a cylindrical Gaussian surface. Calculating the flux through the surface is simple since the cylinder-shaped surface encloses the sheet of charge and the electric field lines are parallel to the axis of the cylinder.
The symmetry of the cylindrical surface also makes it simple to calculate the electric field. If the cylindrical Gaussian surface is selected to be sufficiently big in comparison to the size of the sheet, the edge effects can be disregarded. Charges and their arrangements, such as in capacitors and battery cells, produce electric fields.
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When electrons move through a metal conductor? A. they move in a straight line through the conductor? B.they move in zigzag patterns because of repeated collisions withthe vibrating metal atoms. C. the temperature of the conductordecreases? D. they move at the speed of light in avacuum?
When electrons move through a metal conductor they move in zigzag patterns because of repeated collisions with the vibrating metal atoms. Correct option is B.
The movement of free electrons between atoms is called electrical current.
When a positive charged object is placed near a conductor electrons are attracted the the object. Metals contain free moving delocalized electrons. When electric voltage is applied, an electric field within the metal triggers the movement of the electrons, making them shift from one end to another end of the conductor.
In a given conductor, the property of a free electron is defined by its mobility, and the motion is called drift. They require free electrons to move on to the next atom, which implies an incomplete number in the outer shell.
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If 120 n of force is applied to a crate to move it 15 m, how much work is done?1,000 j1,800 j2,000 j2,500 j.
The formula Work = Force x Distance can be used to calculate the amount of work done. In this case, the applied force is 120 N, and the distance traveled is 15 m.
Work equals Force x Distance = 120 N x 15 m = 1800 J
As a result, the answer is 1,800 J.
It is important to remember that work is a scalar quantity whose value is determined by the direction of the force and displacement. The work done is positive if the force and displacement are both in the same direction. If they are pointing in opposite directions, the work is negative. Because the force and displacement are both in the same direction in this case, the work done is positive.
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