An archery bow is drawn a distance d = 0.29 m and loaded with an arrow of mass m = 0.094 kg. the bow acts as a spring with a spring constant of k = 112 n/m, and the arrow flies with negligible air resistance. to simplify your work, let the gravitational potential energy be zero at the initial height of the arrow. how fast will the arrow travel and it leave the bow?

A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!

The receptor cells that convert light energy into neural signals are called

Does the asteroid belt revolve around the sun?