A pendulum of mass 0.8 kg has 20 joules of potential energy at the top of its path. It's kinetic energy at the bottom of its swing is:

A. 80J

B. 20J

C. 40J

D. 10J

What energy is a wind turbine transferring>?

How does seismograph work

Which of the following statements about diffusion is true? "1. It requires integral proteins in the cell membrane. 2. It is very rapid over long distances. 3.

Which term defines the process of a wave bouncing off of a surface? a. reflection b. refraction c. destructive interference d. constructive interference

Kate is working on a project in her tech education class. She plans to assemble a fan motor. Which form of energy does the motor convert most of its electric energy into? light energy motion energy sound energy thermal energy

Explain with the stars look like to Jane. Explain what the stars look like to John. Explain why the stars look different between Jean and John.

Why is the statement "we evoleved from monkeys" false?

A group of lions is chasing a zebra. The lions are most likely responding to which kind of stimulus

A ray diagram is shown What does e, represent? index of refraction index of reflection angle of incidence angle of refraction Mark this and retum Submit Save and Exit

Which renewable resource could become a nonrenewable resource if used faster than Earth's ability to replenish its supply? A. water B. manganese C. sunlight D. wind