A box has a mass of 4kg and surface area 4m². Calculate the pressure exerted by the box on the floor.
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Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil