Does a mirror work because of refraction

What color does the star alpha centauri appear to be? a. red c. blue b. yellow-white d. blue-orange?

Describe three events you cannot explain.

Earth is the third planet from the Sun. This placement most affects Earth's unique and conditions.

If you were on the open ocean on a large ship, what steps would you do to determine the height of a wave?

A student reaches into a bag of objects. which property of the objects can be observed by using the sense of touch

Identify the conditions for an elastic collision in a closed system. Check all that apply. Energy is conserved. Velocities may change. Momentum is conserved. Kinetic energy is conserved. Objects stick together after the elastic collision.

When the velocity of a mass on a spring is zero, the acceleration is at

Which is a disadvantage of using wind as an energy source? Check all that apply. It may be unreliable. It is not naturally occurring. It produces a lot of waste. It requires wires to carry electricity. It generates large amounts of electricity.

One step in the production of hydroelectric power involves

A pot is heated on a stove. The water begins to boil rabidly. Which explains why the water is boiling fast?