A heavy planet and a light planet are found to have the same momentum. What do we know about their speed?

A. The light object is slower

B. The heavy object is slower

C. They have the same speed

The frequency of sound waves in air from a violin string are around 863 hz. if the speed of sound in air is 300 m/s (approximately), what is the wavelength of the sound waves?

When you cut a board with a power saw as compared with a handsaw, how much work do you do with the power saw? A. less work in less time B. the same amount of work in less time C. more work in less time D. less work in more time

Are porkaryotic cells bigger or smaller than eukaryotic cells

Which has the greatest impact on the temperature of the earth's atmosphere?

A box is being pushed but two stellar science students, one on each side of the box. Peter is pushing box with a force of 10 N to the left. Josh is pushing the box with a force of 15 N to the right.

When you are travelling downhill on a roller coaster, you experience a light feeling in your stomach. why?

Sound waves transport: a. only matter b. only energy c. both matter and energy d. matter when passing through a medium and energy passing through vaccum

What's the number 9?

A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 30.0 mi/h.

Why is it dangerous to be exposed to X-rays but not (or at least much less) dangerous to be exposed to radio waves?