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Question: A 1510 kg car moving south at 11.1 m/s collides with a 2570 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.95 m/s to the north.
Find the velocity of the 2570 kg car before the collision. Answer in units of m/s.
Two blocks with masses M1= 4.9 and M2 = 3.5 are connected with a massless string over two massless and frictionless pulleys. What is the acceleration of mass M2
In the javelin throw at a track-and-field event, the javelin is launched at a speed of 28 m/s at anangle of 32° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes
A 25 turn circular coil of length 5.9 cm produces a magnetic field of magnitude 1.6 mT at its center. Find the current in the loop
Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. Determine the wavelength of the second source
A rock is thrown off a bridge of height 75m. at an angle theta=25 degrees with respect to the horizontal. The initial speed of the rock is 15 m/s. compute the maximum height reached by the rock?
The net entropy changes when a 81g ice cube initially at 0 degrees C melts in a room. What is the net entropy change if room temperature =19 degrees C? What is the net entropy change if room temperature =40 degrees C?
A wheeled cart with a mass of 0.50 kg is rolling along a horizontal track at a constant velocity of 2.0 m/s when it experiences an elastic collision with a second identical cart that is initially at rest, What is each card doing after the second co..
A fox fleeing from a hunter encounters a 0.735 m tall fence and attempts to jump it. By how much does the fox clear the fence
Two masses of 3 kg and 5 kg collide head-on, the former moving to the right with the speed 5m/s, What amount of mechanical energy is lost
Calculate the magnitude of the gravitational force exerted on a 611-kg satellite that is a distance of two earth radii from the center of the earth, What is the magnitude of the earth's acceleration
a brick weighing 30 N fall from a height of 15 m and sinks .7 m into the ground. What is the average force on the rock due to the ground as it sinks into the ground
The froghopper, Philaenus spumarius, holds the world record for insect jumps. What horizontal distance did the froghopper cover for this world-record leap
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