The data below are taken from a test of a petrol engine for a motor car.

power output 150

kW

fuel consumption 20 liters per hour

energy content of fuel 40

MJ per litre

Which expression will evaluate the efficiency of the engine?

What energy is defined as stored energy?

One drawback of dams is that they can flood land upstream from the dam and reduce water flow downstream from the dam. Question 2 options: True False

A hiker walks 200m west and then walks 100m north. What is the magnitude and direction of her resulting displacement?

How do you find the velocity of a wave?

What is the formula for moment in physics

About how much energy is transferred between a producer and primary consumer? A. 90% of the original energy from the Sun is transferred B. 10% of the original energy from the Sun is transferred C. 10% of the plant's energy is transferred D. 0.

If you exert a force of 500 n to walk 4 m up a flight of stairs in 4 s, how much power do you use?

The concepts of a "particle" and a "wave"

If a particle undergoes shm with amplitude 0.10 m, what is the total distance it travels in one period?

If the length of one side of a square is 12.0 m, what is the perimeter of the square?