Suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. whats its speed (in m/s) of the object after falling 2 seconds?

How long does it take to fall 500 meters?

Can an object every have constant velocity on Earth? Explain.

Name two characteristics of the elements in the first group of the periodic table.

What are some examples where the SI is used everyday in the United States.

An electron in a region where there is an electric field experiences a force of magnitude 3.8 10-16 n. what is the magnitude of the electric field at the location of the electron?

A 200-kg boulder is 1000-m above the ground. what is its potential energy?

The law of reflection states that if the angle of incidence is 81 degrees, the angle of reflection is ___ degrees.

Do you mind if I use this example for my assignment?

A squirrel runs along an overhead telephone wire that stretches from the top of one pole to the next. It is initially at position xi=3.37 mxi=3.37 m, as measured from the center of the wire segment. It then undergoes a displacement of Δx=-6.

Imagine a 10 kg block moving with a velocity of 20 m/s to the left. calculate the kinetic energy of this block