I think it should be D. Because the potential energy of a roller coaster is at its lowest point or is the least at the bottom of the lowest point in the roller coaster. It is at its greatest at the top of the highest point of the roller coaster. Hope this helps! =^-^=
Answer:
Ratio of power produced by new to old car is 16:1
Explanation:
Assuming both cars have the same mass m
Let KE1 and KE2 be the kinetic energies of the old and new car respectively.
v1 = v
and v2 = 4v
KE1 = 1/2mv1² = 1/2mv²
KE2 = 1/2mv2² = 1/2m(4v)² = 1/2×m×16v² = 8mv²
Ratio of the power produced by the new car to the old one is simply KE2/KE1 =8mv²/1/2mv² = 16
Since the same time interval is given.
Answer:
Soccer is a great way to maintain health, fitness, strength, and endurance. Soccer can help with cardiovascular health, lower body fat and improves muscle tone, increases muscle and bone strength, and improves health due to shifting between walking, running, and sprinting. Soccer can also promote teamwork and sharing, increase skills in concentration, persistence, and self-discipline, and can provide an opportunity to build your confidence and self-esteem, and it can also reduce anxiety.
Explanation:
Answer:
1
Explanation:
The ratio of their nuclear densities is 1, as nuclear density is constant for all nuclei.