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galben [10]
3 years ago
13

Your car's engine is a heat engine; it converts the thermal energy from burning fuel into energy to move your car and power its

systems. On a cold winter day, you needn't feel guilty about cranking up the heat in your car; running the heater doesn't cost any additional energy beyond the small amount needed to run the fan. Explain why this is so.
Physics
1 answer:
AleksAgata [21]3 years ago
5 0

Answer:

Explanation:

The efficiency of the heat engine is less than 100%. The heat engine converts the thermal energy from the burning of fuel to the mechanival energy. Thus, some of the energy gets lost as waste heat.

Hence, this waste heat is used up to heat up the interior of the car and person feels warmer in the car.

Thus, the waste heat generated in the engine is used for the heating of the car interior.

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ycow [4]

Answer b

Explanation:

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2 years ago
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A crow is flying horizontally with a constant speed of 2.70 m/s when it releases a clam from its beak. the clam lands on the roc
vovangra [49]

Part a)

in horizontal direction there is no gravity or no other acceleration

so in horizontal direction the speed of clam will remain same

v_x = 2.70 m/s

Part b)

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v_f = 20.6 m/s

part c)

if the speed of crow will be increased then the horizontal speed of the clam will also increase but there is no change in the vertical speed

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2 years ago
How does increasing the tension of a spring affect a wave on the spring?
Liono4ka [1.6K]
More energy is being used in the movement

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3 years ago
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It is a state of matter wherein particles are tightly packed, but are far enough apart to slide over one another.
NISA [10]

Particles that are closely packed but spaced apart enough to move over one another are called plasma. Option C is correct.

<h3>What is the plasma state of matter?</h3>

Plasma is a state of matter wherein particles are tightly packed but are far enough apart to slide over one another.

The following conditions are followed by the plasma state.

Hence, option C is correct.

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3 0
1 year ago
Here is something to blow your mind. In one slice of "everything" pizza there are 650 Calories (1000 chemistry calories). That e
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Answer:

Number of slices of pizza is 993.

Explanation:

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2 years ago
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