The equivalent of 8 CELSIUS in F is 46.4 F. In 8 C, the majority of individuals dress warmly and wore jackets. You are one of those folks who can endure the cold without the need of a jacket. Freezing is 8 C.
What is in CELSIUS in reality?MetaPlus®, a patented mixture found in CELSIUS, activates thermogenesis to quicken metabolism and raise caloric burn. Your metabolic rate is increased by Green Tea, EGCG, Tadalafil, Guarana Seed Extract, Taurine, and Ginger Root Extract in combination with other nutrients in CELSIUS.
What does CELSIUS aim to achieve?The Celsius scale is often used to measure the temperature The Celsius scale was developed by Swedish astronomer Anders Celsius. The water temperature (°C) on a thermometer is the melting point liquid clear water at standard pressure and sea level.
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5) If the eastward component of vector is equal to the westward component of vector and their northward components are equal. Which one of the following statements about these two vectors is correct?
1) Vector is parallel to vector
. 2) Vectors and point in opposite directions
. 3) Vector is perpendicular to vector
. 4) The magnitude of vector is equal to the magnitude of vector .
5) The magnitude of vector is twice the magnitude of vector .
The correct statement is "Vectors and point in opposite directions". If the eastward component of one vector is equal to the westward component of another vector and their northward components are equal, then the two vectors are equal in magnitude and opposite in direction.
The direction of the vectors is determined by the direction of their components, so if the components in opposite directions are equal, the vectors must point in opposite directions. This means that when the two vectors are added, their components cancel and the result is a zero vector. The magnitude of each vector remains the same, but their direction is different.
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How much does 16 oz of water weigh in pounds?
Water weighing 16 ounces is pounds. One pound (lb) is equivalent to ounces (oz) of water.
Is 8 ounces of water really 8 ounces?Only when energy water or even other liquid with a similar consistency are ounces by weight or ounces by volume equivalent. 8 ounces of water, for instance, weigh 8 fluid ounces when measured by volume. The situation with flour, however, is very different and complicated.
Is 16 ounces of water each day okay?As a result, the amount of water you should consume each day may change based on what else you're working, eating, and drinking. The Us Academies of Sciences' Institute of Medicine actually advises.
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Which of the following shows a change of velocity?
Group of answer choices
Malik drives his car at 60 kilometers per hour.
The slingshot ride reaches the top, and then the basket starts falling.
A car is at rest in a parking lot for two hours.
Hannah rides her bike at 5 miles per hours.
The slingshot ride reaches the top, and then the basket starts falling. - This shows a change of velocity.
What is acceleration?Acceleration is the rate at which speed and direction of velocity vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.
Even if the speed is constant, motion on a circle accelerates because the direction is always shifting. Both effects contribute to the acceleration for all other motions.
As the slingshot ride reaches the top, and then the basket starts falling, his direction of motion changes and velocity also changes.
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Add up the total amperes allowed for your house. This is the total of all the circuits for your home. What do i have to do?
Amperage, also known as ampacity, is a measure of the amount of electric current that a conductor can safely carry without overheating. The ampacity of a conductor is determined by its size, material, temperature, and environment.
The unit of measurement for ampacity is the ampere (A), which is the flow of one coulomb of electric charge per second. In electrical circuits, the ampacity of conductors is often expressed as the maximum current that the conductor can carry without exceeding its temperature rating or melting.
To determine the total amperes (or ampacity) allowed for your house, you need to calculate the sum of the current rating of all the electrical circuits in your home. Here are the steps you need to follow:
Obtain a copy of the electrical panel schedule: This will typically be located near the main electrical panel in your home and will list the current rating of each circuit in the home.Identify the circuits: Make a list of all the electrical circuits in your home and their corresponding current ratings.Calculate the total ampacity: Add up the current rating of all the electrical circuits in your home to find the total ampacity.Check against the electrical panel rating: Make sure that the total ampacity calculated is less than or equal to the electrical panel's rating. If it is higher, you may need to upgrade your electrical panel or add more circuits to ensure safe and efficient operation.To know more about ampacity refer to:
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a person on a roof stands at such a height so that the ball has 140 j of gravitational potential energy. the person then drops the ball. ignoring air friction, with how much kinetic energy does the ball hit the ground?
Ignoring air friction, the ball with a gravitational potential energy of 140 joules hit the ground with a kinetic energy of 140 joules. Yes, both the potential energy and the kinetic energy are the same.
Mechanical energy is defined as the sum of kinetic and potential energies. The equation for mechanical energy is Em = K + U, where Em is the mechanical energy, K is the kinetic energy, and U is the potential energy.
Kinetic energy is also known as the energy of motion. To find the kinetic energy of an object, we can use the formula K = 1/2mv², where m is the mass and v is the velocity.
Potential energy is the energy that is stored in an object because of its position. One type of potential energy is gravitational potential energy. The formula for it is U = mgh, where m is the mass, g is the acceleration due to gravity and h is the height.
The mechanical energy of a closed system is conserved over time. This is because of the conservation of energy. Assuming a closed system, the potential energy of the ball must be equal to the kinetic energy since the energy is conserved.
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how many milligrams (mg) is this in 171 kg.
171 kg is equal to 171,000,000 milligrams (mg).
You must multiply the kilogramme to milligramme conversion factor, which is 1 kilogramme = 106 milligrammes. To accomplish this, merely multiply the kilogrammes by 106:
171 kg * 106 mg/kg = 171,000,000 mg
Consequently, 171 kg is equal to 171,000,000 milligrammes (mg).
A milligramme (mg) is a unit of mass that is one thousandth of a gramme in the metric system. It is usual practise to measure the mass of relatively small objects, such as medications and other pharmaceuticals, as well as the quantity of other chemicals added to food and drink, using milligrammes. In scientific notation, as well as in a number of printed and electronic communication formats, the abbreviation "mg" is also used to denote milligrammes.
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Micheal is driving his sports car at 30 m/s when he sees a dog on the road ahead. He slams on the brakes and comes to a stop in 3. 0 seconds. What was the acceleration of Michael's car?
The acceleration of Michel's car driving at 30m/s is 10m/s².
How to calculate acceleration?The acceleration of a body can be calculated by dividing the speed of the body by the time taken as follows:
Acceleration = speed / time
According to this question, Micheal is driving his sports car at 30 m/s when he sees a dog on the road ahead. He slams on the brakes and comes to a stop in 3.0 seconds.
Acceleration = 30m/s ÷ 3s
Acceleration = 10m/s²
Therefore, 10m/s² is the acceleration of the car
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A charge +Q is uniformly distributed over a thin ring with radius R. A negative point charge −Q and mass m starts from at a point far away from the centre of the ring and moves towards the centre. Find the velocity of this particle at the moment it passes through the centre of the ring.
A moving electric charge creates a magnetic field, and an electric charge is related with an electric field. The electromagnetic field is made up of both electric and magnetic fields.
What is the impact of uniform charge on the object?According to given question
F = QE gives the attraction between the point charge -Q and the ring with the charge +Q.
Let's determine the electric field resulting from charge +Q at a location x from the ring's centre. The field at point P is zero for a very small element of the ring with charge dQ.
Both an electric and magnetic field are generated by a charge moving uniformly. Charge may be at rest in one frame while in motion in the next. It will only be producing an electric field and no magnetic field in the frame in which it is at rest.
Therefore, When point charge reaches the centre of the circle x=0, and thus we get from [tex]v=v_0 + Q^2/4m\pi e_0R^2[/tex]
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A moving electric charge creates a magnetic field, and an electric charge is related with an electric field. The electromagnetic field is made up of both electric and magnetic fields.
What is the impact of uniform charge on the object?
According to given question
F = QE gives the attraction between the point charge -Q and the ring with the charge +Q.
Let's determine the electric field resulting from charge +Q at a location x from the ring's centre. The field at point P is zero for a very small element of the ring with charge dQ.
Both an electric and magnetic field are generated by a charge moving uniformly. Charge may be at rest in one frame while in motion in the next. It will only be producing an electric field and no magnetic field in the frame in which it is at rest.
Therefore, When point charge reaches the centre of the circle, x=0.
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i need help please thanks
in the Holocene era lived Homo sapiens or intelligent humans. Therefore, culture as a human creation experiences extraordinary development and progress.
About anthropoceneEtymologically, the word Anthropocene comes from the Greek word "anthropos" which means human. Human activities have become numerous and very intensive to the point of rivaling the great power of nature, which means that now humans have changed the order of the earth so that they become the main determining factor for natural motion,
Today, humanity has equaled or surpassed some of nature's great forces in changing the biosphere and many parts of the earth's system of functioning.
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true or false : the magnitude of a vector can be different in different coordinate systems?
False.The magnitude of a vector is a scalar value that represents the magnitude of the physical quantity that the vector represents. This value is independent of the coordinate system used to describe the vector.
The magnitude of a vector is determined by the magnitudes of its components and the directions they point in, and it is a property of the physical quantity that is represented by the vector. This property remains constant, regardless of the coordinate system used to describe the vector, and is therefore considered an invariant property.
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When information is encoded in atoms/molecules, the reproduction costs is ___ than it would be if the information were encoded in bits. lower None of these higher
When information is encoded in atoms/molecules, the reproduction costs is nothing than it would be if the information were encoded in bits.
What is MoleculeMolecule is: a combination of two or more atoms that come from the same or different elements. If the atoms of the same element are joined, it is called a molecular element (eg 02 or oxygen).
If the joining of atoms of different elements, then it is called a compound molecule (Example: C02 or carbon dioxide). If the smallest particles of metallic elements are atoms, then the smallest particles of non-metallic elements can be atoms, or they can also be molecules.
For example, the noble gas group elements (VIIIA) are composed of atomic particles. The halogen group elements (VIIA) are composed of molecules of elements.
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What is the relationship between electric field magnitude just outside a conductor, and the charge density on the surface of the conductor?
Answer:The divergence of the electric field at a point in space is equal to the charge density divided by the permittivity of space.
Explanation
The magnitude of the electric field just outside a charged conductor is proportional to the surface charge density σ. (just a cylinder) through the surface of the conductor, then using what we've just discovered: – E = 0 inside a conductor.
does temperature affet how high a ball bounces science project
The heat of the ball is one element that might affect how it rebounds. A ball will bounce faster than a cold one if it is warmer.
What degree of heat is insufficient for people?People frequently cite a 2010 study that determined the maximum limit of safety to be a wet-bulb temp of 35 C, or 95 F at 100% humidity or 115 F at 50% humidity. At this temperature, the normal body is incapable of cool itself by draining moisture from the skin.
Is 37 degrees F hot or cold?Your body temperature is usually approximately 37 °C. When the temperature is 37.8°Temperature or greater, you frequently develop a fever. You can feel shivery, chilly, or warm.
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Help please!
Solve for the wavelength (while showing your work completely) in meters of a wave from ‘The Jet’ in Seattle, which transmits at 95.7 MHz. M here means ‘mega’, which means x 1 million or x 106. Remember that the speed of light, and so the speed of radio waves is also 3.00 x 108 m/s.
The wavelength of the wave with the frequency of 95.7 MHz is 3.1 meters.
What is Wavelength?Wavelength is the distance between identical points such as crests or troughs in the adjacent cycles of a waveform signal which is propagated in space or along a wire. In the wireless systems, this length is usually specified in the units of meters (m), centimeters (cm) or millimeters (mm).
λ = v/f
where, λ = wavelength of the wave,
v = velocity of the wave,
f = frequency of the wave
f = 95.7 MHz = 95.7 × 10⁶Hz,
v = 3 × 10⁸ m/s
λ = 3 × 10⁸ / 95.7 × 10⁶
λ = 0.031 × 10²
λ = 3.1 meters
Therefore, the wavelength of the wave is 3.1 meters.
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The Ptolemaic model of the Solar System has each planet moving along a ____________.
A) circular path around the Earth.
B) circular epicycle whose center, in turn, moves around the Earth.
C) circular path around the Sun.
D) circular epicycle whose center, in turn, moves around the Sun.
B) circular epicycle whose center, in turn, moves around the Earth.
The Ptolemaic model of the Solar System has each planet moving along a circular epicycle whose center, in turn, moves around the Earth.
Option B is correct.
The Ptolemaic model of the Solar System was an ancient model that was developed by the Greek astronomer Ptolemy in the 2nd century AD.
In this model, each planet was believed to move along a circular path known as an epicycle.
The center of each epicycle was in turn believed to move around the Earth in a circular path, with the Earth being at the center of the Solar System.
This model was widely accepted for over a thousand years and was considered to be a complete and accurate representation of the Solar System.
However, it was later discovered to be incorrect and was eventually replaced by the heliocentric model of Copernicus and later the laws of motion and gravitation developed by Isaac Newton.
Despite its errors, the Ptolemaic model remains an important milestone in the history of astronomy and science.
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How many grams are in 1 mole?
Avogadro's number, or about 6.022 x 1023 particles, is the unit of measurement for the amount of a substance that makes up one mole.
What is mole?A substance's atomic or molecular weight in grammes is equal to the mass of one mole of the substance.
Chemistry counts the amount of atoms, ions, or molecules in a compound using the mole concept. The mole is a helpful unit of measurement for converting a substance's mass in grammes from its number of particles.
For instance, a mole of water molecules weighs 18 pounds while a mole of carbon atoms weighs 12 kg.
As a result, the mole is a key idea for comprehending the quantitative parts of chemistry and is employed in many different chemical computations.
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a postive point charge q and a small electric dipole are arranged with distances d and x as shown. find the exact formula for the total force exerted on the charge by the dipole
Coulomb's law may be used to determine the overall force the tiny electric dipole applies to the positive charge q.
The force between two point charges is proportional to the product of the charges, according to Coulomb's law. The equation F = k * (q * p * cos) / d2 represents the overall force that the dipole applies to the charge q.
Where d is the distance between the charge q and the centre of the dipole, p is the dipole moment, is the angle between the direction of the dipole moment and the direction of the distance between the charge q and the centre of the dipole, and k is the Coulomb constant.
cosθ = x / d
As a result, the following is the final formula for the total force the dipole applied to the positive charge q:
F is equal to k*(q*p*x/d3).
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how much work is required to move a 8.0-c positive charge from the negative terminal of a 9.0-v battery to the positive terminal?
The charge multiplied by the voltage of the battery, or 8.0-c x 9.0-v = 72.0 joules of work.
What is the voltage ?Voltage is the difference in electric potential energy between two points in an electrical field. It is a measure of the potential energy that is available to push electrons from one point to another. Voltage is measured in volts (V), and is the product of electric potential (measured in volts per meter) and the distance between the two points. In a direct current (DC) circuit, voltage can be generated by a battery or other external power source, or it can be generated from an alternating current (AC) source, such as a generator or power line.
The work required to move a 8.0-c positive charge from the negative terminal of a 9.0-v battery to the positive terminal is equal to the amount of energy required to move the charge, which is equal to the charge multiplied by the voltage of the battery, or 8.0-c x 9.0-v = 72.0 joules of work.
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is there any way to pull on your partner’s force sensor without your partner’s force sensor pulling back? Try it
A force sensor is a device used to measure force or weight. Force sensors are commonly used in a wide range of applications, including scientific experiments, industrial processes, and athletic training.
It is not possible to pull on a partner's force sensor without the force sensor pulling back. This is because of the basic principles of physics, specifically Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. In other words, when a force is applied to an object, the object will respond with an equal and opposite force.
In the case of a force sensor, if you try to pull on the sensor, the sensor will respond by applying an equal and opposite force back to you. This is what makes the force sensor work; it measures the force applied to it and then provides a measurement of that force in response.
In conclusion, it is not possible to pull on a partner's force sensor without the force sensor pulling back. This is due to the basic principles of physics and the fact that a force sensor measures force by responding with an equal and opposite force to the one being applied to it.
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Waves have energy that causes particles in matter to vibrate. So, it stands to reason that
Responses
the lower the energy, the faster the particles vibrate (which means a lower frequency).
the higher the energy, the slower the particles vibrate (which means a lower frequency).
the lower the energy, the slower the particles vibrate (which means a higher frequency).
the higher the energy, the faster the particles vibrate (which means a higher frequency).
The higher the energy, the faster the particles vibrate (which means a higher frequency).
option D
What causes the vibration of particles of a wave?
Waves like sound wave is produced when an object vibrates, creating a pressure wave.
This pressure wave causes particles in the surrounding medium to have vibrational motion. As the particles vibrate, they move nearby particles, transferring energy between neighboring particles, creating a faster vibration as the energy transmitted increases.
Thus, we can conclude that, waves have energy that causes particles in matter to vibrate. So, it stands to reason that the higher the energy, the faster the particles vibrate (which means a higher frequency).
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An ice hockey puck glides across frictionless ice. Part A Identify all forces acting on the object. Check all that apply. O Kinetic friction is O Weight O Thrust Fthrust O Normal force O Gravity Fc O Force of hockey stick Fho O Tension T
An ice hockey puck glides across frictionless ice, the forces acting on it are: Weight, Gravity Fc, and Force of hockey stick Fho. Therefore, options B: Weight, E: Gravity Fc, and F: Force of hockey stick Fho are the correct answers.
The ice hockey puck is gliding across frictionless ice, so there is no kinetic friction acting on it. There is also no normal force acting on the puck since it is not in contact with any surface. However, there is a gravitational force acting on it due to the earth's gravity, and there could also be a force applied to the puck by a hockey stick.
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it takes 250.0 J to raise the temperature of a 50.0g sample of a metal by 10.0 C. what is the specific heat capacity of this metal?
A.) 1.25x10^2kJ/g*K
B.) 5.00x10^-4 J/g*K
C.) 1.25x10^5 J/g*K
D.) 50.0 J/g*K
E.) 0.500 J/g*k
5.00x10^-4 J/g*K.The specific heat capacity (C) is given by the equation C = Q/mΔT.
What is specific heat capacity ?Specific heat capacity is the amount of thermal energy required to raise the temperature of a unit mass of a substance by one degree. It is typically measured in joules per kilogram-Kelvin (J/kg-K). Specific heat capacity is an important thermodynamic property since it is related to the amount of energy needed to increase the temperature of a material. It is also related to the amount of heat released or absorbed when a material undergoes a change of temperature. In general, materials with higher specific heat capacity require more energy to increase their temperature, and materials with lower specific heat capacity require less energy.
where Q is the energy, m is the mass, and ΔT is the temperature change. Therefore, C = 250.0 J/ (50.0 g*10.0 C) = 5.00x10^-4 J/g*K.
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10. Suppose the damping constant b of an oscillator increases. a. Is the medium more resistive or less resistive? b. Do the oscillations damp out more quickly or less quickly? c. Is the time constant increased or decreased? 11. a. Describe the difference between 7 and T. Don't just name them; say what is different about the physical concepts they represent. b. Describe the difference between 7 and t112. 12. What is the difference between the driving frequency and the natural frequency of an oscillator?
a. The medium turns out to be more resistive. b. The motions soggy out more rapidly. c. The time consistent declines.
a. The contrast between the damping proportion ζ (zeta) and the period T is that the damping proportion addresses the general strength of damping in an oscillatory framework, while the period addresses the time expected for one complete pattern of swaying to happen.
b. The contrast between the damping proportion ζ (zeta) and the damping time steady τ (tau) is that the damping proportion is a dimensionless worth that describes the strength of damping in an oscillatory framework, while the damping time consistent is a proportion of the time it takes for the plentifulness of a wavering to diminish to 1/e of its underlying worth.
The driving recurrence of an oscillator is the recurrence at which an outside force is applied to the framework to drive it into movement, while the regular recurrence of an oscillator is the recurrence at which the framework would sway whenever left undisturbed, i.e., the recurrence at which it answers most emphatically. As such, the normal recurrence is the inborn recurrence of the framework, while the driving recurrence can be unique and is subject to the outer powers following up on the framework.
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a drill requires 230v and is used for 15 minutes. The current that runs through the drill is 12A. How much energy doe the drill use?
For working 15 minute, the energy used by the drill is 2484 KJ.
What is electric power?The rate at which electrical energy is carried over an electric circuit is known as electric power. The watt, or one joule per second, is the SI unit of power. Watts are subject to the same standard prefixes as other SI units: kilowatts, megawatts, and gigawatts are used.
Electric power of the circuit is = 230 × 12 Watt = 2760 Watt.
For working 15 minute, the energy used by the drill is = 2760 × 15 × 60 joule
= 2484 KJ.
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A region has a uniform electric field pointing to the right. Which is most likely true? A. This electric field could only be caused by negative charges. B. There are positive charges to the left of, and/or negative charges to the right of this region. C. This electric field could only be caused by positive charges. D. There are positive charges to the right of, and/or negative charges to the left of this region.
A region has uniform electric field pointing to the right, most likely true is D.) There are positive charges to the right of, and/or negative charges to the left of this region.
What is electric field?Electric field is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in field either attracting or repelling them.
A uniform electric field is caused by a distribution of electric charges. If the electric field points to the right, there must be a net positive charge to the right of the region and/or a net negative charge to the left of the region. It is not possible for the electric field to be caused by only positive or only negative charges.
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what is the mass (in centigrams) of silver atoms associated with a sample possessing exactly 10 trillion silver atoms? give answer in scientific notation.
The mass of 10 trillion silver atoms is approximately 6.6 x 10^-7 grams.
To determine the mass of 10 trillion silver atoms, we need to know the atomic mass of silver. Silver is a chemical element with the atomic number 47 and its atomic mass is 107.87 amu (atomic mass units). One amu is equivalent to 1.66 x 10^-24 grams.
So, to find the mass of 10 trillion silver atoms, we need to multiply the atomic mass of one silver atom by the number of atoms:
mass = atomic mass * number of atoms
mass = 107.87 amu * 10^13 atoms
mass = 1.0787 x 10^-22 grams * 10^13 atoms
mass = 1.0787 x 10^-9 grams * 10^13 atoms
mass = 1.0787 x 10^4 grams * 10^13 atoms
mass = 1.0787 x 10^17 grams
mass = 6.6 x 10^-7 grams
So the mass of 10 trillion silver atoms is approximately 6.6 x 10^-7 grams.
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When Two Point Charges Are 2.0 Cm Apart, Each One Experiences A 1.0-N Electric Force Due To The Other Charge. If They Are?
When they are moved to a new separation of 8.0 cm, the electric force on each of them will be closest to 0.063 N.
Full question: When two point charges are 2.0 cm apart, each one experiences a 1.0-N electric force due to the other charge. If they are moved to a new separation of 8.0 cm, the electric force on each of them is closest to?
Given:
The point charges are initially at a distance of d = 2 cm.
The initial force experienced by them is F = 1 N.
The electrostatic force experienced by two charges q and Q is defined as,
F = kqQ/d^2
Where
K is the constant and r is the distance between the charges.
The initial force experienced by them will be, F = 1N
Now, the final distance between the charges is changed to 8 cm which is equal to 4d.
So, the new force on the charges will be,
F = kqQ/(4d)^2 = 1/16 = 0.063N.
So, when they are moved to a new separation of 8.0 cm, the electric force on each of them will be closest to 0.063 N.
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what is the color of lava when it is at its hottest?
a. Crimson
b. Orange
c. Yellow
d. red
The color of the lava when it is in its hottest state will be b) orange color.
The color of lava depends on temperature. Starts bright orange (1000-1150 C). On cooling, the color changes from bright red (800-1000 °C), then dark red (650-800 °C), to brownish red (500-650 °C). Solid lava will be black (but can still be very hot). The hottest lava that exists today is called "mafic" and is the type that contains mineral compounds that melt at the highest temperatures. An electric blue flame that looks like lava. Despite the name, this phenomenon is actually a sulfur fire that resembles the appearance of lava rather than actual lava from a volcanic eruption.
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Determine the escape velocity of the Jupiter if its radius is 7149 Km and mass is 1.898 × 10 Kg
The escape velocity of Jupiter is approximately 63,812.9 meters per second.
What is meant by escape velocity?Escape velocity is the minimum velocity that moving body must have to escape from gravitational field of celestial body and move outward into space.
v_escape = √(2GM/R)
G is gravitational constant (6.67430 × 10^-11 N m^2/kg^2), M is mass of Jupiter (1.898 × 10^27 kg), and R is radius of Jupiter (7149 km or 7.149 x 10^6 m).
v_escape = √(2 x 6.67430 × 10^-11 x 1.898 × 10^27 / 7.149 x 10^6) = 63812.9 m/s
So, the escape velocity of Jupiter is approximately 63,812.9 meters per second.
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What happens when light energy bends as it passes from one type of substance to another type?
a. absorption c. refraction b. reflection d. transmission
"Refraction" happens when light energy bends as it passes from one type of substance to another type. Therefore, option c is the correct answer.
What is Refraction?Refraction is the bending of a light wave as it passes from one type of substance to another type. Refraction occurs as a result of changes in density and speed. For instance, light slows down as it enters water from air. When light travels through a fast medium and into a slow medium, the light beam is refracted, which causes it to bend in the direction of the boundary between the two media.
Refraction bending allows us to have lenses, magnifying glasses, peepholes in house doors, cameras, prisms, rainbows, movie projectors, and telescopes. Even our eyes rely on this light bending. We wouldn't be able to concentrate light onto our retina without refraction.
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