Which is a property of light a: mass b: density c: wavelength d: pitch

Which of the following has the greatest density? A 10 g object with a volume of 10 cubic centimeter. A 40 g object with a volume of 20 cubic centimeter. A 20 g object with a volume of 5 cubic centimeter.

A proton and an alpha particle are momentarily at rest at a distance r from each other. They then begin to move apart. Find the speed of the proton by the time the distance between the proton and the alpha particle doubles.

Which type of ladder has flat steps, hinged back, self-supporting, and non-adjustable?

Hikers went on a five mile hike which they started at 1 pm and stopped at 3 pm they ended up 300 meters south of the trail head where they started. what was the hikers velocity?

Describe two examples of activities that you do where you depend on friction, and would not be able to do them without friction.

Like the polar bear, the walrus is a strong swimmer, although it does not have the same endurance. For short periods of time, a walrus can swim at an average speed of 9.7 m/s. How far would a walrus swim at this speed in 3.4 minutes?

How did Einstein's and Newton's theories differ in terms of explaining the cause of gravity?

A sled being dragged to the right across loosely packed snow with a rightward acceleration

Imagine two artificial satellites orbiting earth at the same distance. one satellite has a greater mass then the other one which of the following would be true about there motion? 1.

What is energy? (Not the answer from google search.)