Define a variable. How does a variable relate to a constant?

Which planet has no atmosphere, which prevents erosion? A. Neptune B. Uranus C. Mars D. Mercury

an object with a mass of 125 kilograms is lifted through a height of 10 meters. how much work is done?

A ski lift is used to transport people from the base of a hill to the top. If the lift leaves the base at a velocity of 15.

Examine Conceptual Example 3 before addressing this question. A wave moves on a string with a constant velocity. Does this mean that the particles of the string always have zero acceleration?

What is the difference between speed and velocity? A) velocity describes speed with direction. B) there is no difference. C) Velocity describes direction with position. D) Velocity is used in space, while speed is used on earth.

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?

A galvanometer can be calibrated to read electric A) current B) Voltage C) either of these D) neither of these

Why do responsible consumers use credit and credit cards?

According to Ptolemy's model of the movement of celestial bodies, A. the sun is the center of the universe. B. the earth rotates around the moon. C. planets orbit in circular paths around the earth. D. the earth rotates around the sun.