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3 years ago

What is the formula for calculating the efficiency of a heat engine?

Physics

1 answer:

Olegator [25]3 years ago

7 0

Explanation:

The efficiency of a heat engine is defined as the ratio of the work output to the heat input into the system.

It is highly impossible to get an engine that is 100% efficient.
A heat engine that is 100% efficient suggests that all the heat input into the system is used to do work completely.
There is no heat loss.

Efficiency = $\frac{work output}{heat input}$ x 100

Efficiency has no unit

Learn more:

Heat brainly.com/question/914750

#learnwithBrainly

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This project will allow you to “see” the difference between AC and DC.

Temka [501]

Answer: uhhhhhhh what is this for?

Explanation i so confused

5 0

3 years ago

Read 2 more answers

If we increase the amount of work being done, and all other factors remain the same, the amount of power would

BlackZzzverrR [31]

The amount of power would increase
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4 0

4 years ago

A neutron star and a black hole are 3.34 x 1012 m from each other at a certain point in their orbit. The neutron star has a mass

m_a_m_a [10]

Answer:

F=1.65 x 10²⁶ N

Explanation:

Given that

Distance ,R= 3.34 x 10¹² m

Mass m₁= 2.78 x 10³⁰ kg

Mass ,m₂= 9.94 x 10³⁰ kg

we know that gravitational force F given as

$F=G\dfrac{m_1m_2}{R^2}$

G=Constant

G=6.67 x 10⁻¹¹ Nm²/kg²

Now by putting the values

$F=6.67\times 10^{-11}\times \dfrac{2.78\times 10^{30}\times 9.94\times 10^{30}}{(3.34\times 10^{12})^2}\ N$

F=1.65 x 10²⁶ N

Therefore the force between these two mass will be 1.65 x 10²⁶ N.

5 0

4 years ago

A water wave passes by a floating leaf that is made to oscillate up and down two complete cycles each second, which means that t

lina2011 [118]

Answer:

2 Hz.

Explanation:

Frequency is simply defined as the number of appearances of a periodic event occurring per time. It is usually measured in cycles/second.

Now, in this question, we are told that there are 2 cycles for each second.

Thus, we can say that the frequency is 2 cycles/1 s = 2 Hz.

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3 years ago

When neither air mass displaces the adjacent one, their boundary is called a(n) ________ front.

Liula [17]

Answer:

correct answer is Stationary

Explanation:

solution

the correct answer is Stationary because when 2 mass of air is pushing each other opposite direction but there is no power to move other mass of air than their stationary front is form as a cold front or the warm front stop moving

and the wind blowing parallel to the front instead of perpendicular that can help it stay in a place

so correct answer is Stationary

8 0

4 years ago