A cube of mass 28 kg and side 27 cm is placed on a smooth, flat surface in a vacuum on a planet where the acceleration of gravity is 1.9 m/s2. Calculate the pressure on the surface beneath the cube.

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.