A0.15 kg baseball moving at a velocity of -40 m/s collides with a 0.8 kg bat moving at a velocity of +30 m/s. if the velocity of the ball after the hit is +50 m/s, what is the final velocity of the bat? a. vf = +0.35 m/s b. vf = +13.1 m/s c. vf = +28.1 m/s d. vf = +32.3 m/s

What is created when solids,liquids,an gases mix with one another

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?