Jesse wants to know how well a particular brand of car wax protects his car from dirt. Which of the following is a variable that must be kept constant?

a. The use of the car wax

b. How dirty the car gets

c. The kind of car

What is the equation used to calculate the total amount of energy used by an appliance?

A negatively-charged particle is slowly moving as it enters a region that has a constant magnetic field. If the velocity of the particle is initially parallel to the magnetic field, what will be the subsequent motion of the particle?

What is the movement of particle in a liquid

John rides his bike with a constant speed of 12 miles per hour. How far can he travel in 2 hours?

Which of the following statements is correct about the four fundamental forces? A The Strong Nuclear Force keeps the positively charged neutrons together in the nucleus and from atom to atom.

A 25kg object moves from left to right at a speed of 30km/h. What net force is required to keep this object moving in a straight line at constant speed

Ganymede is one of the many moons of jupiter. it is nearly a sperical in shape. it is larger than the planet mercury and slightly smaller than the planet mars.

Which of the following statements about two carts rolling on a track and experiencing a completely inelastic collision is TRUE? a. The kinetic energy of the system is conserved to good approximation. b.

If element X has 17 protons, how many electrons does it have?

A 2.0-kilogram laboratory cart is sliding across a horizontal frictionless surface at a constant velocity of 4.0 meters per second east. What will be the cart's velocity after a 6.0-newton westward force acts on it for 2.