Answer:
an atom is about a trillion times smaller then a speck of dust.
Explanation:
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Answer:
F = 236063.6N
Explanation:
Please see attachment below.
Answer:
C
Explanation:
Its because electron does its thing with energy to
its orbital
Answer: 7.41 m/s
Explanation: By using the law of of energy, kinetic energy of the brick as it falls equals the potential energy before falling.
Kinetic energy = mv²/2, potential energy = mgh
mv²/2 = mgh
v²/2 = gh
v² = 2gh
v = √2gh
Where g = 9.8 m/s², h = 2.80m
v = √2×9.8×2.8 = 7.41 m/s