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Jimmy and his cart (with a combined mass of 200 kg) are moving along with a velocity v1 = 20 m/s i. Jimmy spots Margy in another cart (whose combined mass is also 200 kg) moving along with a velocityv2 = -20 m/s i. There is tape on the front of Jimmy's cart. After colliding the two carts stick together. What is the velocity of the combined system of two carts plus occupants after the collision?
A 7.55-g bullet from a 9-mm pistol has a velocity of 389.0 m/s. It strikes the 0.745-kg block of a ballistic pendulum, what was the velocity of the bullet as it emerged from the block
A coil has an induced voltage of 120 volt when the rate of flux change is 0.4 Wb/s. How many turns are in the coil
A container holds 1.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 7.7x10-3 kg bullet with a speed of 630 m/s
We supply 132.4 Joules of heat to an engine with 15.60% efficiency. How much work can the engine do
A 6.0 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.7 m/s2, find the force exerted by the rope on the bucket
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 x 10^-6 C, Find q1 and q2
The radius of the hydrogen atom is 0.053 nm. What is the frequency of the circular motion of the electron in the hydrogen atom
Three charged particles are arranged into a triangle. The charge on the particle located (4.0cm, 3.0cm) is 5nC. The charge on the particle at the origin is -3nC, and the change on the particle located at (4.0cm, 0cm) is +6nC. Determine the magnitu..
A rock is thrown vertically upward with a speed of 19.0m/s from the roof of a building that is 70.0m above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground?
A rock is released from rest into water. The magnitude of Fd of the drag force acting on the rock due to its motion through water can be modeled as Fd = Cd(v), where v is the speed of the rock and Cd is the constant drag coefficient. Determine the..
ocean waves with wavelength 1.2 m and period 1.5s are moving past a pier. a boy runs along the pier, in the direction opposite to the motion of the wave, at 3.5 m/s. how many wave crests pass the boy each second?
Find the resistance between points A and B. A car starts from rest on a curve with a radius of 130 m and accelerates at 0.500 m/s^2. How many revolutions will the car have gone through as the magnitude of its total acceleration is 2.50 m/s^2.
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