How do you find the average speed

If a heat engine takes in 4565 kJ and gives up 2955 kJ during one cycle, what is the engine's efficiency?

Which situation will have the highest resistance? A. long wire and high temperature B. short wire and high temperature C. long wire and cold temperature D. short wire and low temperature

A bee flies at a constant rate of 5 m s until it notices a flower. It then comes to rest in 5 seconds. Find the acceleration of the bee if a = Δv Δt.

What does Inert mean? Why are Noble Gases Inert? Include an explanation of atomic structure and electrons.

A person drives an automobile with a mass of 450 kilograms at a velocity of 26 meters per second. The driver accelerates to a velocity of 30 meters per second. The difference in the automobile's kinetic energy between the two velocities is joules.

Through which type of material does sound tend to travel at the highest speed? A. Sound travels at the same speed in every material B. Solids D. Liquids

How does a low pressure system determine the weather in an area?

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?