Copper is a reddish orange, soft metal with a bright metallic luster. It is an excellent conductor of heat and electricity. Copper surfaces when exposed to air gradually turns to a dull, brownish color.
Answer:
3.16 m/s
Explanation:
Elastic energy in the rubber = kinetic energy of the stone
EE = KE
½ kx² = ½ mv²
v = √(kx²/m)
Given k = 200 N/m, x = 0.05 m, and m = 0.050 kg:
v = √(200 N/m (0.05 m)² / 0.050 kg)
v = √10 m/s
v ≈ 3.16 m/s
Round as needed.
We won't have a clue until we see Question #5.
Hi! This is true because F = mA. If we increase mass, we should expect acceleration to be lower. If we decrease mass, we should expect acceleration to increase. Think of it this way - it is harder to make a heavier person go faster then slower and faster again.
