Chemistry, 30.03.2020 21:58 autumnplunkett09
A car is traveling down a level street at 30 mph. As it approaches a red light, the driver presses the brake pedal. This causes
brake pads to squeeze against the wheels and stop the car.
Position A
30 mph
Position B
15 mph
Position C
0mph
According to the law of conservation of energy, what happens to the energy of the car as it travels from position A to position C?
A. Position C has the most energy because the brakes transformed all of the kinetic energy to thermal energy
B.
The total amount of energy remains the same, but it is transformed from kinetic energy to thermal energy as the
brakes are applied.
C. Position A has the most energy because the kinetic energy is greatest when the car is moving fast.
D. Position B has the most energy because the car has kinetic and thermal energy while slowing down.
Answers: 2
Chemistry, 21.06.2019 17:00
Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?
Answers: 1
Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
Answers: 3
Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
Answers: 1
A car is traveling down a level street at 30 mph. As it approaches a red light, the driver presses t...
Chemistry, 07.03.2021 14:00
Mathematics, 07.03.2021 14:00
Spanish, 07.03.2021 14:00
History, 07.03.2021 14:00
Mathematics, 07.03.2021 14:00
Geography, 07.03.2021 14:00
History, 07.03.2021 14:00
English, 07.03.2021 14:00
Geography, 07.03.2021 14:00
Mathematics, 07.03.2021 14:00
English, 07.03.2021 14:00
Physics, 07.03.2021 14:00