12. An archer on top of a 50-story (150 meter) building shoots an arrow horizontally with a velocity of 50 m/s. What is the velocity of the arrow after 1.0, 2.0, 3.0, 4.0, and 5.0 seconds? Has it hit the ground after
5.0 seconds?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.