What occurs when the velocity of earth is doubled?

a. the orbit of earth around the sun becomes smaller

c. the earth escapes the sun

b. the orbit of earth does not change

d. the orbit becomes more elliptical?

Crude oil is a mixture of many different components. The extraction of crude oil from the Earth is important, but its refinement into different substances is a key piece to obtaining as many uses as possible from the crude oil.

What physical properties of nylon and leather make them good materials to use for shoelaces? A. high density and low conductivity B. durability and flexibility C. hardness and durability D. low viscosity and flexibility

How far away from the earth is the sun?

Which of the following is calculated using the equation vf = vi + at? free fall acceleration due to gravity free fall velocity distance of acceleration

Which of the following does NOT describe the conversion of potential to kinetic energy? The Sun emitting light A rocket leaving the Earth's atmosphere Releasing a stretched rubber band An avalanche

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?

What causes the stars to appear to move across the night sky?

Two waves collide and the temporary combined waves that results is smaller that the original wave. which term describes this interaction? A. destructive interference B. standing wave formation C. diffraction D. constructive interference