Do all types of waves need a medium to travel through

Why might surface mining be less risky for miners than underground mining?

He force that pulls the moon toward earth is called

Put the steps in order from 1 to 4 to describe how sound waves travel. Energy is passed from particle to particle. Energy reaches the ear, which allows for hearing. A sound wave is produced when an object vibrates.

Wood is an example of a fossil fuel. User: The type of energy stored by fossil fuels such as coal is a. kinetic energy. b. mechanical energy. c. chemical potential energy. d. electromagnetic energy. User: An example of a fossil fuel is a. wood. b.

An object moving at a constant speed of 25 m/s is making a turn with a radius of curvature of 7 m (this is the radius of the "kissing circle"). The object's momentum has a magnitude of 78 kg·m/s.

How did changing from a light drizzle to a downpour affect the river and the sediment The river increased its slope. The volume of the river decreased. The velocity of the river increased! There was more erosion in the stream.

Which of the fundamental forces explains the structure of atoms and molecules?

It always takes to change the motion of an object. O A. electricity OB. energy C. gravity D. density Reset

What might a psychodynamic theorist think about a person with extreme shyness?

Determine the magnitude of the acceleration for the speeding up phase.