Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
What is Smog?Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.
Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.
The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.
Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
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Vikram and Shruti are sitting on the back seat of a car, Vikram says that both of us are at rest while Shruti says that both of us are in motion. Then they decide to place their problem before the science teacher. The teacher explained their problem with concerning facts.
Answer:pizza party
Explanation:
What is the benefit of cooling down after exercise?
It allows the body to increase blood flow.
It keeps blood from pooling in the limbs.
It prepares the body for exercise.
It keeps the muscles flexed.
Answer:
It allows the body to increase blood flow.
if you whirl a yo-yo about your head in a horizontal circle, in what direction must a force act on the yo-yo? what exerts the force?
On the off chance that you spin the yo-yo head in an even circle, you should apply force toward the circle's middle. This force is known as the centripetal force.
The centripetal force continually pulls the yo-yo towards the center of the circle, keeping it moving in a round movement.
The power that conveys the centripetal force to the yo-yo is the pressure in the string.
The string, which pulls the yo toward the circle's middle, gives the centripetal force important to keep up with movement. The string is focused on because of the heaviness of the yo-yo and the speed at which it turns.
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When no air resistance acts on a projectile, what will happen to its horizontal acceleration?
Answer:
Explanation:
If air resistance is ignored , then there is no acceleration in horizontal direction in projectile motion.
average mass of adult cat is normally distributed with a mean mass of 10 kg and a standard deviation of 1.8 kg. what percentage of cats would have mass more than 12 kg? what percentage of cats would have mass between 7.2 kg and 9.8 kg? round answers to two decimals, if necessary. make sure to include % sign.
a) More than 13% of cats would weigh more than 12 kg.
b) Between 7.2 kg and 9.8 kg of mass would be found in 39.68% of cats.
What is mass and weight?A measuring of an object's gravitational characteristic, or the quantity of matter it includes, is the object's mass. The gravity forces acting on an object or the force required to carry it is measured by the weight of the thing. An object's downward acceleration due to gravity on earth is roughly 9.8 m/s2.
a) P( x > 12 ) = 1 - P( x < 12 )
= 1 - P[(x - \mu) / \sigma < (12 - 10) / 1.8)
= 1 - P(z < 1.11)
= 1 - 0.8665
= 0.1335
Percentage = 13.35%
b) P(7.2 < x < 9.8) = P[(7.2 - 10) / 1.8) < (x - \mu) /\sigma < (9.8 - 10) / 1.8) ]
= P(-1.56 < z < -0.11)
= P(z < -0.11) - P(z < -1.56)
= 0.4562 - 0.0594
= 0.3968
Percentage = 39.68%
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How to find the magnitude of the velocity of the canoe relative to the river?
Our simple expression for the canoe's relative velocity to the river is vc/r=( x, y). When compared to the earth, the river is moving at a vr/e= angle (0.54,0). vc/e=(0.55cos(45),0.55sin(45)) is the canoe's angle to the earth.
How does physics define a magnitude?Magnitude is simply "distance or quantity," according to the definition given in physics. It shows how an object moves when it is in motion, whether that movement is absolute, relative, or of a certain size. It serves as a way to describe something's size or scope.
What exactly are magnitude and unit?Scalar values serve as measurement units, and scalar multiplication provides the definition of magnitude. The original quantity is equal to the magnitude of a quantity multiplied by the supplied unit. This is true for all types of tensors, including.
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how many weeks will the thrusters have to operate to increase the velocity of the probe to 420 miles per minute?
The thrusters must operate for 50 seconds to increase the velocity of the probe to 420 miles per minute.
What is velocity?
Velocity is a vector quantity that measures the rate of change in an object’s position. It is defined as the rate of change of displacement, or the rate of change of an object’s position over time. It has both magnitude, which is the speed of the object, and direction, which is the direction the object is traveling.
To answer this question, we must first calculate the change in velocity that is needed to bring the probe up to its desired speed of 420 miles per minute. We can do this by subtracting the current velocity of the probe from 420 miles per minute. For example, if the current velocity of the probe is 350 miles per minute, the change in velocity needed is 70 miles per minute (420 - 350 = 70).
Next, we need to calculate the thrust force that the thrusters must generate to achieve the desired change in velocity. This can be calculated using the equation Force = Mass x Acceleration, where Mass is the mass of the probe and Acceleration is the desired change in velocity divided by the time period in which it is achieved. For example, if the mass of the probe is 500 kg and the desired change in velocity is 70 miles per minute, the acceleration needed is 0.14 m/s2 (70 miles per minute / 500 kg = 0.14 m/s2).
Finally, we can calculate the amount of time that the thrusters must operate to achieve the desired change in velocity. This can be calculated using the equation Time = Force / Acceleration, where Force is the force generated by the thrusters and Acceleration is the desired change in velocity divided by the time period in which it is achieved. For example, if the thrusters generate a force of 1000 Newtons and the desired change in velocity is 70 miles per minute, the time required to achieve this is 50 seconds (1000 Newtons / 0.14 m/s2 = 50 seconds).
Therefore, in this example, the thrusters must operate for 50 seconds to increase the velocity of the probe to 420 miles per minute.
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if you weigh 665 n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 17.0 km ? take the mass of the sun to be ms
The weight of an object with a mass of 665 N on the surface of the neutron star significantly higher than on Earth, due to the much stronger gravitational pull of the massive neutron star is [tex](6.67 x 10^-11 m^3 / kg s^2)[/tex].
The weight of an object on the surface of a celestial body depends on its mass and the gravitational force acting on it. The equation for the force of gravity is given by[tex]F = G * (m1 * m2) / r^2,[/tex] where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.
To calculate the weight of an object on the surface of a neutron star with the same mass as the sun and a diameter of 17.0 km, we need to first find the mass of the neutron star and then the radius. The mass of the neutron star can be taken to be the same as that of the sun, which is approximately [tex]1.989 x 10^30[/tex] kilograms.
Next, we can use the formula for the radius of a sphere to find the radius of the neutron star: [tex]r = (3 * M) / (4 * pi * density)[/tex], where M is the mass of the neutron star and density is the average density of the star. The density of a neutron star is extremely high, on the order of several times that of atomic nuclei. For a neutron star with the same mass as the sun and a diameter of 17.0 km, the radius can be calculated to be about 5.6 km.
Finally, we can use the equation for the force of gravity to find the weight of an object on the surface of the neutron star:
[tex]F = G * (m1 * m2) / r^2[/tex]
where m1 is the mass of the object (665 N), m2 is the mass of the neutron star (1.989 x 10^30 kilograms), r is the radius of the neutron star (5.6 km), and G is the gravitational constant[tex](6.67 x 10^-11 m^3 / kg s^2)[/tex].
The weight of an object with a mass of 665 N on the surface of the neutron star would be significantly higher than on Earth, due to the much stronger gravitational pull of the compact and massive neutron star.
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8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. what is the rate of energy change of the system?
8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
The rate of energy change of the system can be calculated by subtracting the amount of heat lost from the system from the amount of shaft work done on the system. while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
So, the rate of energy change of the system can be calculated as follows:
Energy change = Shaft work - Heat loss
Energy change = 8 kW - 3 kW
Energy change = 5 kW
So, the rate of energy change of the system is 5 kW.
8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
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Problem 4
Eliana is changing the tire of her car on a steep hill 20 m high. She trips and drops a 10 kg spare tire.
A. What is the initial PE of the tire?
B. What is the kinetic energy of the tire at the bottom of the hill?
C. What is the speed of the tire at the bottom of the hill?
A. The initial PE of the tire is 200 Joules (PE = mgh = 10 kg x 20 m x 9.8 m/s² = 200 J).
B. The kinetic energy of the tire at the bottom of the hill is 200 Joules (KE = PE = 200 J).
C. The speed of the tire at the bottom of the hill is 14.4 m/s (KE = ½ mv² = 200 J, so v = √(2KE/m) = √(400/10) = 14.4 m/s).
What is K.E.?
Kinetic energy is the energy an object has due to its motion. It is defined as the work needed to accelerate an object of a given mass from rest to its stated velocity. It is calculated by multiplying half the object's mass by the square of its velocity. Kinetic energy is a scalar quantity, having magnitude but no direction.
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a force of 10 lb is required to hold a spring stretched 8 in. beyond its natural length. how much work w is done in stretching it from its natural length to 13 in. beyond its natural length?
The required work done in stretching the spring from its natural length to the specified length is calculated to be 105.63 lb.in.
The spring is stretched for 8 in.
The force the spring holds is 10 lb.
The spring is being stretched from its natural length to 13 in.
Work done is calculated to be = ?
The relation between force, spring constant and extension is,
F = k x
Making k as subject, we have,
k = F/x = 10/8 = 1.25 lb/in
The work done in stretching from natural length to 13 in is,
W = 1/2 k x² = 1/2 (1.25) 13² = 105.63 lb.in
Thus, the required work done is calculated to be 105.63 lb.in.
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how much tension must a rope withstand if it is used to accelerate a 1110- kg car horizontally along a frictionless surface at 1.20 m/s2 ?
The tension force in the rope must withstand a force of 12,270 N to accelerate the 1110-kg car horizontally at 1.20 m/s^2 along a frictionless surface.
The tension force in the rope must be equal to the gravitational force plus the net force required to accelerate the car horizontally.
The equation for this can be determined using Newton's second law of motion, which states that the net force acting on an object is equal to its mass times acceleration (F = ma).
Given that the car has a mass of 1110 kg and is being accelerated at a rate of 1.20 m/s^2, the net force can be calculated as follows:
F = ma = 1110 kg * 1.20 m/s^2 = 1332 N
Since the surface is frictionless, the only force acting against the car is gravity. The gravitational force acting on the car can be calculated using the equation:
Fg = m * g
where m is the mass of the car (1110 kg) and g is the acceleration due to gravity (9.8 m/s^2).
Fg = 1110 kg * 9.8 m/s^2 = 10,938 N
Therefore, the tension force in the rope must be equal to the sum of the gravitational force and the net force, or:
Tension force = F + Fg = 1332 N + 10,938 N = 12,270 N
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an electromagnet draws 3 kw of active power and 4kvar of inductive reactive power. what is the apparent power?
The required apparent power when active power and reactive power are specified is calculated to be 5 kva.
Apparent power is the measure of alternating current power that is computed by multiplying rms current by rms voltage. The overall amount of power required to operate a computer, illuminate a lightbulb, and power a production system is known as apparent power.
The power that is actually used for a particular load, or the active power or real power, if all the available power isn't used.
The active power drawn by the electromagnet (P) = 3 kw
The reactive power drawn by the electromagnet (Q) = 4 kvar
The apparent power is given by the equation,
S = √(P² + Q²) = √(3² + 4²) = 5 kva
Cos Ф is the power factor.
It is given by,
Cos Ф = active power/apparent power = 3 kw/5 kva = 0.6
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which of the following statements about the size of temperature units is not true? group of answer choices 1 kelvin is bigger than 1 fahrenheit degree. 1 celsius degree is bigger than 1 kelvin. 1 celsius degree is bigger than 1 fahrenheit degree. 1 celsius degree is equal to 1 kelvin.
The wrong statement about size of temperature unit is 1 Celsius degree is bigger than 1 Kelvin (b)
The answer choices should have as follow :
A. 1 kelvin is bigger than 1 fahrenheit degree
B. 1 celsius degree is bigger than 1 kelvin
C. 1 celsius degree is bigger than 1 fahrenheit degree
D. 1 celsius degree is equal to 1 kelvin.
The temperature is measured using three different scales, Fahrenheit, Celsius, and Kelvin.
Celsius or °C is a part of the Metric System, that used in most countries. Celsius temperature scale is based on two points: the boiling point of water as 100° C and the freezing point of water as 0° C.Fahrenheit or °F, used in the US. Fahrenheit temperature scale is 32° for the freezing point of water and 212° for the boiling point of water. 100 degrees separate freezing and boiling on the Celsius scale, but for Fahrenheit the difference is 180 degrees. This means Celsius is 1.8 times larger than Fahrenheit.Kelvin scale. Temperatures measured on the Kelvin scale are written simply as K, not °K. Kelvin degree is the same size as the Celsius degree. The freezing point of water (0°C), and the boiling point of water (100°C), correspond to 273.15°K and 373.15°K. So, 1 celsius degree is equal to 1 Kelvin.Learn more about temperature scale at :
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a ball is thrown straight up from ground level. it takes 30 seconds for the ball to fall back to ground level. as the ball is going upward, what is its upward speed when it is 10 feet above the ground?
The ball is 10 feet off the ground, it has a climbing velocity of 1.33 feet/second.
How toe calculate the speed of the ball ?Using the equations of motion for motion, we can solve for the upward velocity of the ball when it is 10 feet off the ground.
Let's assume the positive direction is up. We know that it takes 30 seconds for the ball to bounce off the ground, so the total time the ball is in the air is 60 seconds (30 seconds up + 30 seconds down).
Using the equations of motion relating displacement, initial velocity, final velocity, acceleration, and time, we get:
displacement = (final velocity + initial velocity) / 2 * time
When the ball reaches its maximum height, its final velocity is 0. The initial velocity of the ball when it is 10 feet off the ground can be solved for:
10 feet = (0 feet/sec + v0) / 2 * (30 seconds / 2)
where v0 is the initial upward velocity of the ball. Solving for v0 gives:
v0 = 10 feet / (15 seconds / 2) = 1.33 feet/second
So if the ball is 10 feet off the ground, it has a climbing velocity of 1.33 feet/second.
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what is the wavelength that you hear if you are standing behind the ambulance? express your answer to three significant figures and include the appropriate units.
The detected sound has an approximate frequency and wavelength of 2766 2766 2766 Hz and 0.124 0.124 0.124 m, respectively.
Why do ambulances use low frequency sound?The Rumbler has a higher vehicle penetration capability than an electrical siren alone thanks to its low frequency content. This function increases The Rumbler's ability to alert drivers, particularly when the listener's view of the emergency vehicle is obscured.
Are ambulances loud?The ambulance's acoustic noise levels were 130–135 dB–A when viewed from 1 metre away from the car. Due to effective soundproofing, acoustic noise levels are much lower and don't exceed 80 dB-A.
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10 kg of R-134a fill a 1. 115-m3 rigid container at an initial temperature of –30°C. The container is then heated until the pressure is 200 kPa. Determine the final temperature and the initial pressure. Use data from the steam tables
Gas has a final temperature of 273.6 K and a starting pressure of 177.6 kPa.
R-134a is 1,1,1,2-tetrafluoroethane, as is well known.
Using the ideal gas formula:
PV =nRT PV = w/M RT, where P = gas pressure =? and V = gas volume = 1.115 m3.
T = gas temperature (-30°C) = 273 + (-30) = 243K
R is 8.314 m3 Pa/mole, which is the gas constant. M = molar mass of R-134a gas = 102.03g/mole K = mass of gas = 10 kg = 10,000 g
When you plug in all the values provided, you get the ideal gas equation: P = 1.115m3 = 10000 g/102.03 g/mole 8.314 m3 Pa/mole. 177587.9687 Pa = 177.6 kPa = K 243K P
Consequently, the gas's starting pressure is 177.6 kPa.
We now need to determine the gas's final temperature.
Gay-Law Lussac states that for constant volume and number of moles, the pressure of a gas is precisely proportional to its temperature.
P∝T
P1/T1 = P2/T2
where
P1 is the initial pressure of gas = 177.6 kPa
P2 is the final pressure of gas = 200 kPa
T1 is the initial pressure of gas = ?
T2 is the final pressure of gas =
177.6 kPa/243K = 200 kPa/T2
T2 = 273.6 K
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Wilbur the pig is on the run from farmer Zuckerman. He climbed a hill and found a sled. The snow
that day was perfectly frictionless. The smooth downhill slope he was about to take was elevated 55
meters above a horizontal landing (also frictionless). If his sled started moving from rest (V₁ = 0,
initial velocity is zero) what would Wilbur's velocity be once he reached the horizontal landing?
Assume all friction of any kind is negligible (ETH = 0).
Wilbur's velocity when he reaches the horizontal landing will be approximately 55.6 m/s.
What do you mean by velocity?
Velocity is a vector quantity, meaning it has both a magnitude and a direction. It is a measure of the rate of change of an object's position in a given direction. The velocity of an object is the rate of change of its position in a given direction and is usually expressed as a vector quantity, with speed and direction.
First, we need to calculate the acceleration due to gravity (g):
g = 9.8 m/s²
We can then use the equation for constant acceleration:
V₂ = V₁ + (a * t)
Where V₂ is the final velocity, V₁ is the initial velocity, a is the acceleration and t is the time.
Since Wilbur's initial velocity is 0 (V₁ = 0) and the acceleration is 9.8 m/s², we can solve for the time (t):
t = (V₂ - V₁) / a
Since the final velocity is unknown, we can rearrange the equation to solve for it:
V₂ = (a * t) + V₁
We can now substitute in the values for a and t:
V₂ = (9.8 m/s² * (55 m / 9.8 m/s²)) + 0
V₂ = 55.6 m/s
Wilbur's velocity once he reached the horizontal landing would be 55.6 m/s.
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what is the real reason we have different moon phases?
Recall that the moon orbits the Earth, which affects how the moon appears to be in different phases. Half of the moon always receives sunlight as it orbits the Earth.
Darkness is always present on the moon's other side. It depends on the situation whether we can see the illuminated components.
What is the reason for the different phases of Moon?
Due to the Moon's orbit around Earth and Earth's orbit around the Sun, we experience varying amounts of Moonlight throughout the course of a month. Moving is everywhere. A lunar eclipse prevents the Moon from receiving sunlight because Earth is positioned between the Sun and the Moon. All or a portion of the lunar surface is obscured by Earth.
What are the 4 main phases of the Moon?
We generally pay attention to the new moon, first quarter, full moon, and third quarter of the moon. The lunar cycle has a week-long interval between each of these moon phases.
What causes the Moon to look different every 3/4 days?
As a result of its orbit around the Earth, the moon experiences phases. From Earth, we can observe that the sun illuminates the moon to a varying extent depending on its position in relation to the Earth. The moon can be completely dark or completely illuminated.
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stan is teaching a german shepherd to jump through hoops. initially, he gives the german shepherd a treat for approaching the hoop, then only for jumping up in front of the hoop, and finally only for jumping through the hoop. stan is using the method of
Early reinforcement reinforces actions that closely resemble the intended behaviour. Later, reinforcement is limited to actions that closely resemble the desired behaviour.
What is the use of successive approximations method?The technique of consecutive approximations is referred to as a "algorithm or algorithmic process" and is used to solve equations of a specific class using a series of simple arithmetic operations.
One of the well-known traditional approaches for solving integral equations is the successive approximations method (SAM). In the literature, it is sometimes referred to as the Picard iteration approach.
In fact, this approach offers a strategy for resolving initial value issues or integral equations. A strategy for modifying operant behaviour that involves rewarding responses that resemble the intended behaviour.
Therefore, stan is using the method of successive approximations.
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Please help with the Task question
When the angle of incident light moves away from 90 degrees, the average intensity of the light incident on a flat surface area diminishes. This how the incident light affect the power output of solar cell.
How does solar cell output depend on light intensity?With an increase in light intensity, solar cells' open loop voltage, short-circuit current, and maximum output power increases. Therefore, it is clear that the solar cell outperforms at producing energy the more concentrated the light is.
How does the solar cell's power output change depending on how far the light source is from it?The amount of energy produced will diminish as the distance between the light source and the solar cell grows. This is caused by the fact as light spreads out immediately after it departs the source, but the amount of light remains unchanged.
How does a solar cell's surface area influence how much power it tends to produce?In order to be able to to point towards the Sun when the spaceship moves, solar panels must have a large surface area. Greater sunlight can be extracted from solar light by presenting more surface area.
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a box is supported by a 5.2 n vertical force and carried 2.5 m horizontally across a room at constant speed. then, the same box is pushed 2.5 m horizontally across a smooth table (smooth enough to ignore friction) by a 5.2 n horizontal force. in which case was more work done on the box by the 5.2 n force?
In the second scenario, more work done on the box by the 5.2 N force compared to the first scenario where no work was done.
The work done on an object is equal to the force applied to it multiplied by the distance it moves in the direction of the force. In the first scenario, the 5.2 N vertical force applied to the box is perpendicular to the direction of motion, so no work is done by this force.
In the second scenario, the 5.2 N horizontal force is in the same direction as the movement, so work is done by this force. The work done by the force can be calculated as follows:
W = F × d = 5.2 N × 2.5 m = 13 Nm
So, in the second scenario, more work was done on the box by the 5.2 N force compared to the first scenario where no work was done.
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when the athlete holds the barbell on his hand, the reaction force is the weight of the barbell on his hand. how does this force vary for the case where the barbell is accelerated upward? downward?
The reaction force on the athlete's hand holding a barbell over their head increases when the barbell is accelerated upward and decreases when accelerated downward.
When the athlete lifts the barbell overhead, the reaction force on their hand is equal to the weight of the barbell. But when the barbell is accelerated upward: the athlete must apply a greater force to lift it, resulting in an increased reaction force on their hand.
Conversely when the barbell is accelerated downward: the athlete's force is less than the weight of the barbell, resulting in a decreased reaction force on their hand. These changes in reaction force are a result of Newtons third law of motion which states that every action has an equal and opposite reaction.
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why can you charge the aluminum plate again and again and the charge on the styrofoam plate never seem to run ou
The charge on the styrofoam plate never seems to run out, as the charge cannot move away from the surface due to its insulating properties.
The aluminum plate and the styrofoam plate have different electrical properties that affect their ability to hold charge. Aluminum is a conductor, meaning it allows the flow of electrical charge, whereas styrofoam is an insulator, which does not allow the flow of charge. When an aluminum plate is charged, the charge can easily move through the conductor, and any excess charge can flow away to ground.
Therefore, the aluminum plate can be charged again and again, as long as there is a source of charge to transfer. In contrast, the styrofoam plate, being an insulator, cannot conduct charge, and any charge that is deposited on it stays trapped on the surface.
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earth's main energy outputs are question 31 options: ultraviolet radiation and visible radiation. gamma rays, x-rays, and ultraviolet radiation. visible and infrared radiation. reflected light and thermal infrared radiation.
The Earth's main energy outputs are reflected light and thermal infrared radiation. Option D is correct.
The Earth reflects a portion of the incoming solar radiation back into space, mainly in the form of visible light. Additionally, the Earth radiates thermal energy back into space in the form of infrared radiation, which is produced by the warm surface and atmosphere of the planet.
Ultraviolet radiation, gamma rays, and X-rays are not the main energy outputs of the Earth, but they do reach the Earth's surface in small amounts, mainly as a result of the Sun's emission of these types of radiation.
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--The given question is incorrect, the correct question is
"Earth's main energy outputs are : A) ultraviolet radiation and visible radiation. B) gamma rays, x-rays, and ultraviolet radiation. C) visible and infrared radiation. D) reflected light and thermal infrared radiation."--
Iron-cutting scissors have short edges, whereas cloth-cutting scissors have long edges. Why
Answer:
It depends on the amount of pressure needed to cut the material.
Iron is a tougher material to cut though, so the blades must be shorter to create more pressure to break through the iron.
Cloth on the other hand is easier to cut through so the blades can be longer in order to cut more in each snip.
Explanation:
what would you expect when low pressure forms on earth's surface? group of answer choices convergence and sinking air convergence and rising air divergence and sinking air divergence and rising air
Whenever low pressure builds up upon that earth's surface, we might expect divergence and rising air.
What does physics' SI unit for pressure mean?
Pressure is defined as the force acting on a body's surface area divided by its volume. Mathematically, it can be expressed as follows: The SI pressure unit is the Pascal (Pa). Every Newton of force exerts one Pascal of pressure on a square centimeter of ground.
What factors determine pressure?
P = F / A, meaning force per unit of surface area, is the formula for computing pressure. The sign representing pressure in scientific theory is p, and the Standard unit for maintaining pressure is the pascal (symbol: Pa). One pascal is equivalent to one Newton per square meter of force applied perpendicularly to a surface.
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Full question-
a magnetic levitation system is shown below. an applied voltage v(t) creates a circuit current i(t), which causes a magnetic force fem(t) to act on the steel ball. the objective is to levitate the ball by manipulating the voltage. this nonlinear force can be modeled as:
The magnetic force acting on the steel ball can be modeled as [tex]Fem(t) = B0 + B1V(t) + B2V(t)^2[/tex] , where B0, B1, and B2 are constants and V(t) is the applied voltage.
This nonlinear force can be used to manipulate the voltage to levitate the ball. To do this, the voltage must be adjusted to find the equilibrium point where the force is zero, which is the point at which the ball is floating in the air.
To find the equilibrium point where the force is zero, you can use a numerical optimization technique such as gradient descent. This involves continuously adjusting the voltage while monitoring the force, until the force is close enough to zero that the ball is levitating.
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a hiker walks with an average speed of 1.5 m/s. what distance in kilometers does the hiker travel in a time of 1.7 hours?
A hiker walking with an average speed of 1.5 m/s would travel a distance of 2.55 kilometers in 1.7 hours.
This can be calculated using the equation Distance = Speed x Time, or D = S x T. Substituting the given values, we get D = 1.5 m/s x 1.7 hours = 2.55 kilometers.
Speed is a scalar quantity that refers to how quickly an object is moving. It is typically measured in meters per second (m/s). Speed is related to how much distance an object covers over a given amount of time. The faster an object moves, the greater the distance it covers in a given amount of time, and thus the greater its speed. Speed can also be measured in other units, such as miles per hour (mph).
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3. A force of 10 N works on a ball over a distance of 5 m. The force is
parallel to the displacement of the ball. What is the total work done by the
force?
O -50 N
O ΟΝ
O 2N
50 N
help!!!
Answer:
2N
Explanation:
works one=force/weight
10N/5m
2N