A boy is inning with a kinetic energy of 810j. If the boy has a mass of 80kg. What is his speed?

Suppose you use a diffraction grating that contains 600 lines/mm in your spectroscope. What effect would you expect this to have on the sharpness and resolution of the lines in your line spectrum?

Can one individual represent and entire population? Why or why not

Which avtivties belongs on top of physical activity pyramid

What happens to water when it changes Into ice?

What is the length of time from new moon to first quarter

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