In the following situations, which ball has the greatest kinetic energy?

A. a ping-pong ball rolling off the end of a ramp

B. a golf ball rolling off the end of a ramp

A star is a ___ that emits energy produced by nuclear reactions in its interior.

Meaning of a nonzero y-intercept to a graph of reaction distance versus speed

Which group was guaranteed voting rights by the Fifteenth Amendment? A. women B. soldiers C. African Americans D. 18 year olds

Suppose that with a pulley system, you need to exert a force of 1,400 N to lift a heavy object. But without the pulley system, you need to exert 4,200 N to lift the object. What is the mechanical advantage of the pulley system

In electric dryer consumes 6.0*10 6 jewel of energy when operating at 220 V for 30 minutes. During operation the dryer draws a current of approximately?

Two particles with the same charge will repel each other. True or false

your friend is bragging about his motorcycle. he claims that it can go from a stop in position to 50 mph in three seconds. He is describing the motorcycles

How many substances/elements are on the periodic table?

You are pulling a 80 kg box with a rope. The force you exert on the box is 90 N at 30 degrees from the ground. What would be the coefficient of kinetic friction if the box is moving at constant velocity?

If you wanted to calculate the density of a baseball and you knew its mass and volume you would need the density formula and a (n) - A. calculator B. triple-beam balance, the formula for the volume of a sphere and a calculator. C.