Approximately how much of Earth's water is freshwater?

1 %

3 %

97 %

50 %

Describe a situation that demonstrates that water waved carry energy

3. A bored shuttle astronaut swings a 3.0 kg Crescent wrench around in a circle of radius R = 1.5 m on the end of a tether with constant speed. Each revolution of the wrench takes 0.75 seconds. A) Find the tension in the tether.

A train moves a constant velocity of 50km/h how far will it move in 0.5h

The total energy of a system remains blank

Find the force necessary to start the crate moving, given that the mass of the crate is 32 kg and the coefficient of static friction between the crate and the floor is 0.58.

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?