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coldgirl [10]
3 years ago
7

Which of the following is true about natural resources, including sunlight?

Physics
1 answer:
Galina-37 [17]3 years ago
6 0

Answer: the answer is D ☺

Explanation:

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The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?
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The increase in entropy is directly related to the increase in temperature.
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3 years ago
When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved?
sladkih [1.3K]

Answer:

When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved? They will move at the same velocity as whichever object was fastest initially. They will move at the same velocity of whichever object was slowest initially.

Explanation:

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3 years ago
Read 2 more answers
a current of 5 ampere is passed for 2 hours in an electric iron having a resistance of 100 ohms calculate the heat produced
Alina [70]

Answer:

\boxed{\sf Heat \ produced \ (H) = 5 \ kWh}

Given:

Resistance (R) = 100 Ω

Current (I) = 5 A

Time (t) = 2 hours

To Find:

Heat developed (H) in the electric iron

Explanation:

Formula:

\boxed{ \bold{ \sf H = I^2Rt}}

Substituting values of I, R & t in the equation:

\sf \implies H =  {5}^{2}  \times 100 \times 2 \\  \\ \sf \implies H = 25 \times 100 \times 2 \\  \\  \sf \implies H = 5000  \\  \\ \sf \implies H = 5 \: kWh

\therefore

Heat developed (H) in the electric iron = 15 kWh

3 0
3 years ago
The moon at on atmosphere​
borishaifa [10]

Answer:

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6 0
3 years ago
A driven gear with 60 teeth is driven by a driven gear of 30 teeth what is the VR of
noname [10]

Answer:

VR=2

Explanation:

driven=60

driving=30

but VR=driven/driving

VR=60/30

VR=2

hence the velocity ratio VR is 2

6 0
3 years ago
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