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Q: Where on a rollercoaster track will a car have the greatest kinetic energy? A. at the top of the highest hill B. at the bottom of the highest hill C. halfway down the highest hill D.
The car's mass would have to be known to answer this.
A: Where on a rollercoaster track will a car have the greatest kinetic energy? A. at the top of the highest hill
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Original conversation
User: Where on a rollercoaster track will a car have the greatest kinetic energy? A. at the top of the highest hill B. at the bottom of the highest hill C. halfway down the highest hill D. The car's mass would have to be known to answer this.

Weegy: Where on a rollercoaster track will a car have the greatest kinetic energy? A. at the top of the highest hill
colossus09|Points 81|

User: Ignoring friction, the total amount of potential energy plus kinetic energy of a swinging pendulum bob will be _____. A. zero B. small C. large D. constant

Weegy: D. constant
om_roy|Points 20|

User: You turn on a 60 W incandescent light bulb and a 60 W fluorescent light bulb at the same time. Five minutes later you measure the temperature of the surface of each bulb and discover that the incandescent bulb is 10 °C warmer than the fluorescent bulb. More electrical energy was converted to A. light in the fluorescent bulb. B. heat in the fluorescent bulb. C. friction in the incandescent bulb. D. potential energy in the incandescent bulb.

Weegy: The answer is B. heat in the fluorescent bulb.
bongche|Points 3864|

User: In a pendulum system, when is it possible for the potential and kinetic energies both to be equal to zero? A. when the pendulum bob is at the top of a swing B. when the pendulum bob is hanging and at the bottom of a swing C. at a height of one-half the distance from the bottom to the top of a swing D. It is not possible for both the potential and kinetic energies to be zero at the same time.

Weegy: B. when the pendulum bob is hanging and at the bottom of a swing .
roisRie|Points 290|

User: When electricity is turned into light and heat, we say that the energy has been _____. A. created B. destroyed C. quantized D. conserved

Weegy: The answer is C. quantized
bongche|Points 3864|

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Asked 4/30/2013 5:54:11 AM
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