No friction present means: Ek = Ep
So Ek = mgh = 10 * 9.8 * 2 = 196 J
Let <em>m</em> be the mass of both cubes. If the smaller cube has side length <em>x</em>, then its volume is <em>x</em> ³. The side lengths of the larger cube have length 4<em>x</em>, so the larger cube's volume is (4<em>x</em>)³ = 64<em>x</em> ³, or 64 times as large as the smaller cube.
The first cube has a density of <em>m</em>/<em>x</em> ³, while the larger one has a density of <em>m</em>/(64<em>x</em> ³) = 1/64 <em>m</em>/<em>x</em> ³, so the ratio of densities is (1/64):1, or 1:64 (larger cube to smaller cube).
Eneregy is the ability to to do work
it takes work to heat someone
heat is energy
put the solid metal block in a campfire and heat it up
tada
wait, we need the options, nevermind
Answer:
False
Explanation:
Fusion doesn't produce more.