Answer:
the answer is A.
Explanation:
An atom contains equal numbers of protons and electrons . Since protons and electrons have equal and opposite charges , this means that atoms are neutral overall.
Absolute Zero is the name for when molecules have 0 kinetic energy.
The answer to your question is capacitor :)
Yes, a puddle of water is an object in motion.
Answer:
Explanation:
Loss of potential energy = mgh.
h = d sin 20
= 400 sin20 = 136.8 m
Loss of potential energy = m x 9.8 x 136.8
= 1340.64 m
negative work done by friction = μ mg cosθ x d
= .2 x m x 9.8 x cos 20 x 400
= 736.72 m
Net loss of potential energy = 1340.64 m - 736.72 m
= 603.92 m
= gain of kinetic energy = 1/2 m v²
1/2 m v² = 603.92 m
v² = 1207.84
v = 34.75 m /s .
