Which of the following can be thought of as either a wave or a particle?

a. light

b. an electron

c. a proton

d. all of the above

The principle that describes the force on a charge in a magnetic field was named for who

Where is the moon in relation to Earth and the sun during phase B?

A child moving at constant velocity carries a 2 N ice cream cone 1 m across a level surface. Is she doing work? a. Yes, because the force acts perpendicular to the direction of motion c.

A 10 kilogram mass is lifted to a height of 2 meters what is its potential energy at that height

A Carnot engine, operating between hot and cold reservoirs whose temperatures are 800.0 and 400.0 K, respectively, performs a certain amount of work W1. The temperature of the cold reservoir is then lowered to 200.

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.