Which element is the primary fuel used to generate electricity using nuclear energy? coal hydrogen uranium helium

When a bicycle tire gets mud on it, the tire becomes slippery. What does the mud do to the tire? A. Increases the force of gravity B. Increases the force of friction C. It decreases the force of friction D. It decreases the force of gravity

20. Unlike other kinds of liquids, volatile liquids

What happens when molten material is heated from Earth's core? It sinks towards the core. It rises up towards the crust. Lava travels away from the core and forms the crust. Lava travels away from the crust and forms the mantle

An object's acceleration is never A. directly proportional to the net force. B. inversely proportional to the object's mass C. in the same direction as the net force. D. in the opposite direction as the net force.

What determines the atomic mass of an element? A. the sum of the neutrons and the electrons B. the sum of the protons and electrons C. the sum of the ions and isotopes D. the sum of the protons and the neutrons

Why fan rotates in a clockwise direction and why not in a anti clockwise direction

If the force of gravity increases, which mearsurement will change and how? A.) weight decreases B.) mass increases C.) mass decreases D.) weight increases

A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the coefficient of kinetic friction is 0.19, what is the magnitude of the acceleration, in m/s2, of the box down the slope?

Identify the following as a suspension or a colloid. sand in water

A cyclist starts at a position of 0 m and takes 3 s to move east to a position of + 8 m. He then cycles west to a position of + 5 m which takes an additional 2 s. What is the cyclist's displacement? a. + 11mb. - 8mc. - 5m d. + 5m