A 60 kg woman stands in an elevator that is accelerating downward at 3.1 m/s2. Calculate the amount of force she exerts on the elevator floor.

Explain how power is determined within the context of electricity/circuitry.

5N to the left and 20 N to the right. If the couch has a mass of 45 Kg determine its acceleration A) 3m/s2 to the right B) 1.8 m/s2 to the right C) 2.2 m/s to the right D) 0.33 m/s2 to the right

What happens to the density of a substance when it's heated? Explain?

Carla holds a ball 1.5 m above the ground. Daniel, leaning out of a car window, also holds a ball 1.5 mabove the ground. Daniel drives past Carla at 40 mph and, just as he passes her, both release their balls at the same instant.

The height of the washington monument is measured to be 170 m on a day when the temperature is 30.0°c. what will its height be in meters on a day when the temperature falls to - 16.

What is the momentum of a 2 kg ball traveling at 2m/s

A constant force is exerted for a short distance on a block of mass that is initially at rest on a horizontal frictionless plane. This force gives the block a certain final speed v.

A football quarterback is moving straight backward at a speed of 3.00 m/s when he throws a pass to a player 20.0 m straight downfield. (a) if the ball is thrown at an angle of 25.

Simone is walking her dog on a leash. The dog is pulling with force of 34 N to the right and simone is pulling backward with a force of 16 N

An object moves with velocity v (t) = t^2-8t+7 a) write a polynomial expression for the position of the particle at any time t greater or equal to zero.