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A 0.57-kg air cart is attached to a spring and allowed to oscillate.
Part A) If the displacement of the air cart from equilibrium is x=(10.0cm)cos[(2.00s?1)t+?], find the maximum kinetic energy of the cart.
Part B) Find the maximum force exerted on it by the spring.
a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 1.30 m, are floating at rest on Space Station Freedom between two metal bulkheads.
Four identical 7 mC charges are placed on a neutrally- charged penny, Determine the resulting potential in the center of the penny due to the four charges
An electron is accelerated by a 4.5 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5 cm.
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, and the outside temperature is -18° C. What is the increase in the entropy of the universe that this heat loss produces?
A potter's wheel having a radius 0.47 m and a moment of inertia 10.9 kg•m2 is rotating freely at 46 rev/min. The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N. Find out the effe..
A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give r..
Suppose that a simple pendulum consists of a small 58.0 g bob at the end of a cord of negligible mass. What is the pendulum's length
You are riding on a Jet Ski at some angle upstream on a river flowing with a speed of 2.8. Assume the Jet Ski is moving at a speed of 12 relative to the water. At what angle should you point the Jet Ski if your velocity relative to the ground is t..
When a liquid and its vapor are in equilibrium, the rates of evaporation of the liquid and condensation of the vapor are equal. Compute the rate of evaporation of mercury into a vacuum
A particle with a charge of q = -5.00 nC is moving in the uniform magnetic field of vec{B}=( -1.20 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}.
A surface is infinitesimally close to and surrounds a dipole. The electric flux during the surface must be zero, since the net charge it surrounds is zero. How is it possible for the dipole to have an electric field and be consistent with Gauss' t..
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