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?

A 1500kg car traveling along a road is hit by a 0.1kgrock that creates a small crack in the car's windshield. Which of the following describes the interaction between the windshield and the rock? a.

A boy is standing motionless on a skateboard. He throws a basketball forward. Describe his motion.

Which of the following would cause a chemical change in water?

How do weathering and deposition differ

How do find the volume of a prizm

Which of these could NOT be used to find the mechanical advantage of an inclined plane? A. input force B. output force C. percent efficiency D. length and height of inclined plane

What are the Rules of magnetism

Two spheres of the same radius, but of different masses, are both fully submerged in water. The lighter sphere is held below the water line by a rope anchored to the bottom of the container. The heavier sphere is suspended from a rope.

How does an increase in thermal energy affect molecules?

Which of the following is an example of applied research?