The electric field of a charge is defined by the force on what kind of particle?

When you heat the air inside a hot air balloon, it rises. Why does this occur?

What will happen to a spacecraft that is moving far out in space, and that is outside Earth's atmosphere and the pull of gravity? A. It will continue to move at the same speed and in the same direction. B.

When conducting an experiment, a scientist should:?

How are ice liquid water and water vapor different from each other?

If your pencil is 11 cm long, how long is it in millimeters

An apple falls from an apple tree growing on a 20o slope. the apple hits the ground with an impact velocity of 8 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

A 140 g ball at the end of a string is revolving uniformly in a horizontal circle of radius 0.537 m. The ball makes 2.27 revolutions in a second. What is its centripetal acceleration?

A 32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its velocity form 8.5 m/s to 4.1 m/s in 3.0 seconds what is the magnitude of the frictional force?

Yellow light with a wavelength of 5.89 x 10-7m travels through quartz glass with a speed of 1.94 x 108 m/s. What is the frequency of the light? A) 3.29 Hz B) 3.04 x 10^-15 Hz C) 30.36 Hz D) 3.29 x 10^14 Hz

What type of OS is very fast and small, and is often embedded, or built into the circuitry of a device?