Which of the following instruments is used to measure air pressure? a. thermometer b. barometer c. anemometer d. hygrometer

Calculate the force experienced by a positive test charge of 8.1 * 10-9 coulombs if the electric field strength is 9.4 * 107 newtons/coulomb.

The law of reflection states that if the angle of incidence is 16 degrees, the angle of reflection is ___ degrees.

Like magnetism, static electricity can attract and repel. True False

Which describes a positive or negative net force acting on an object?

How is energy transformed to chemical energy?

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength