Tracy pushes a block up an inclined plane to a height of 1.0 m.

If Tracy puts 475 J of work into the system, but only 450 J are used to elevate the block, what is the efficiency of the inclined plane?

A. 95%

B. 106%

c. 925)

OD 25 J

If the path of a current flow is laid out on a map ehat is the map called

Based on its location on the periodic table, how many electrons does oxygen have in its outer energy level?

220V is applied to two different conductors made of the same material. One conductor is twice as long and twice as thick as the second. What is the ratio of the power transformed in the first relative to the second?

How much heat is absorbed by a 27g iron skillet when its temperature rises from 13oC to 23oC?

What is an example of Convection?

The decomposition of a substance by an electric current is called

Along some shorelines, incoming waves cause the water to simply rise and fall rather that form a surf zone. What does this tell you about these shorlines?

Which word best describes the rate at which work is done? work energy power velocity

Explain why a valve would last longer in the pulmonary position than in the aortic position

Think about the process of heating water, the heating and upward motion of hot steam and air, and the spiral spinning. For these events, list each form of energy associated with the heat source, the water, the steam and air, and the spiral.