You are in your car at rest when the traffic light turns green. You place your coffee cup on the horizontal dash and hit the gas. The coffee cup does not slide as you accelerate forward. The work done by friction on your coffee cup is

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?