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A comet of mass m, following a trajectory that is a a parabola about the sun, collides with an equal mass at rest and then both masses continue moving together. What's the value of the final energy and the nature of the orbit after the collision?
A 0.45 caliber bullet (m = 10.7 g) is fired into a large block of wood (M = 0.750 kg) so that the bullet becomes lodged in the block. What is the speed of the block after the collision
A photon produces a proton-antiproton pair according to the reaction y ---> p+P. What is the minimum possible frequency of the photon
What is the frequency of the small axial oscillations that the electron will undergo if it is free along the z-axis near the origin.
How much charge does the battery supply to each plate.
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.75 m/s at 59.5° below the horizontal, Calculate the speed of her shadow on the level ground
A block of metal has an actual weight of 45 N and an apparent weight of 25 N in water. What is the buoyant force from the water
A 1.80kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.50m/s, what is the force constant of the spring?
Estimate the force exerted on your fingertip if you place it at this point. Assume area of the fingertip to be 1.4cm^2
Two balls are approaching each other head-on. Their velocities are +14.6 and -8.88 m/s. Determine the velocity of the center of mass of the two balls
A fireman, 25.6 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 39.5° above the horizontal
An arrow is launched from a height of 1.21 m above the ground with an initial velocity of 48.3 m/s, What will be the maximum height the arrow will reach during its trajectory
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. What is the speed of the helium nucleus after the collision
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