Ja-Anna, has a mass of 45 kg, climbed 3m up a ladder to rescue her cat from a tree. how much work against gravity did she do?

Compare exothermic reactions and endothermic reactions. Give at least one similarity and one difference.

A boy and his dog run at 3m/s for 4min. How far do they run?

What is the minimum coating thickness (but not zero) that will minimize the reflection at the wavelength of 705 nm where solar cells are most efficient?

What happens when you close a light switch in a parallel circuit?

What does a protoplanetary disk most likely have in common with Earth's Solar System? A. They both decrease in gravity as they accumulate more mass. B. They both are in motion and are held together by gravity. C.

Which of the following best describes scientific knowledge A.) Durable B.) Absolute and never changing C.) Frequently varies

Beth made the chart shown. A 2-column table with 1 row. The first column labeled X has entries Wall clock, T V remote control, Portable music player. The second column labeled Y has entries Refrigerator, Table lamp, Hair dryer.

Which sentence states Newton's third law? If two objects collide, each object exerts a force in the same direction as the other. If two objects collide, each object exerts a force equal to and in the opposite direction of the other.

Why did the chicken cross the road.

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.