An arrow with a mass of 0.015 kg is shot at 91 m/s and sinks 11 cm into a target.

a.) Find the force of friction provided by the target.

b.) Find the impulse the wood exerts on the bullet.

c.) Find the time it takes for the bullet to stop.

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.

Blank is the perceived frequency of a sound wave

Standing at the same location, which organism would have the greatest gravitational attraction to the earth? a- your pet dog b- your pet ant c- your pet opossum d- your pet elephant