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A star is held together by:

gravity

nuclear fission

nuclear fusion

acceleration

How far (in meters) will you travel in 3 minutes running at a rate of 6 m/s?

What fraction of the volume of an iceberg (density 917 kg/m3) would be visible if the iceberg floats in (a) the ocean (salt water, density 1024 kg/m3) and (b) in a river (fresh water, density 1000 kg/m3) ?

The sun Why does mining often result in environment Pollution?

Which statement best describes a risk associated with using radioisotopes in nuclear reactors? A Radioisotopes are very expensive and do not produce the amount of energy that coal and oil produce.

When force is applied to an object, what happens

Adrian read about a new antimicrobial in a popular magazine. The advertisement claimed that the product Bactokil prevents bacterial growth. So, Adrian conducted a controlled experiment to test the product claims.

A world-class sprinter can burst out of the blocks to essentially top speed (of about 11.5 m/s) in the first 15.0 m of the race. what is the average acceleration of this sprinter, and how long does it take her to reach that speed?

How are primary and secondary succession similar and how are they different?

What relates the net force exerted on an object to its mass and acceleration?

I'm a wave, the medium moves parallel to the direction that the wave travels