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Juliette [100K]
3 years ago
10

A gasoline engine transforms approximately 34 percent of the fuel’s chemical energy into mechanical energy. If energy is conserv

ed, what happens to the other 66 percent? A) Most is transformed into thermal energy. B) Most is transformed into electrical energy. C) It is lost due to friction between moving parts. D) It is stored to run the car at a later time.
Physics
1 answer:
laiz [17]3 years ago
8 0
A) Most is transformed into thermal energy.
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Answer:

7.71 V

Explanation:

When the charge remains constant, the potential difference decrease by the factor of the dielectric constant K

V new = V initial / K = 12 V / 2.8 = 4.29 V

ΔV ( change in potential) = V initial - V new ( after dielectric has been added) = 12 V - 4.29 V =      7.71 V

The potential difference decreases by 7.71 V

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Jake drags a sled of mass 18 kg across the snow. The sled is attached to a rope that he pulls with a force of 70 N at an angle o
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If the 30 N on the rope were pulled straight up, it would offset the force of gravity ( m g = 10 kg * 9.8 N/kg = 98 N) , leaving a net force up from the ground on the sled of 98-30 = 68 N. Since the rope is pulled at the angle of 25o, only part of the force is in the upward direction, (30N)(sin(25) = (30)(.423) = 12.7. So the net force becomes 98 N down offset by 12.7 up or 98-12.7 = 85.3 N. Ah, there it is: C.
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It will take at least 3 hours for them to get to Bridgeport
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Principle Archimedes is applied in building a ship and submarine using the manipulating that buoyancy, is controlled the ballast tank system.

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Submarine is rather had they focused on main parts of the submarine,he is complex and long process implementation,the most submarine design like submarine stability.

Submarine stability is complete and the fundamental Archimedes principle to arrive the weight of submarine is equal to buoyancy force.

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flood parts:- at the bottom position and allow water to enter or leave that tank.

air vents:- air vents at the top of the pressure hall,and that they submarine dive.

this time submarine is most modern system is depth is 300 to 450 meters,high pressure  air is 15 bar is tank air valve.

submarine is basic of the effective volume of all the submarine surfaced condition,submarine minus to the free water flood is equal to the fully pressure hull,submarine is the surfaced condition.

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