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grigory [225]
2 years ago
10

The efficiency of a canot engine is more when the temperature of the sink is increased by 50%

Physics
1 answer:
timama [110]2 years ago
4 0

The efficiency of a carnot engine is more when the temperature of the sink is increased by 50% is 33.33%

<h3>What is Efficiency?</h3>

The efficiency is defined as the work done by the engine divided by the heat supplied.

Work done is the difference between the heat supplied and heat rejected.

So, efficiency η = 1 - T₁/T₂

Where T₁ is the lower temperature and T₂ is the higher temperature.

The temperature of the sink is increased by 50%. If the lower temperature is T₁, then the higher temperature will be 1.50T₁

Substitute the value into the expression , we get

η = 1 - T₁ / 1.5T₁ x 100 %

η = 33.33 %

Thus, the efficiency of the carnot engine is 33.33 %

Learn more about efficiency.

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Two forces, F⃗ 1F→1F_1_vec and F⃗ 2F→2F_2_vec, act at a point. F⃗ 1F→1F_1_vec has a magnitude of 9.20 NN and is directed at an a
marishachu [46]

Answer:

-9.46 N

Explanation:

In order to get the value of the x component of the resultant force, we need to get the value of the x component of each force.

This value will be the projection of the force vector, on the x-axis.

For F₁, as it is directed at an angle of 55.0º above the negative x axis, we can find F₁ₓ just applying the definition of cosine of an angle, as follows:

cos θ = \frac{x}{r}

In this case, x = F₁ₓ, and r = F₁

θ, measured from the positive x axis counterclockwise, is as follows:

θ= 180º-55º = 125º

⇒ F₁ₓ = F₁* cosθ = 9.2 N * cos 125º = -5.28 N

We can repeat the process for F₂, as follows:

For F₂, as it is directed at an angle of 53.3º below the negative x axis, we can find F₂ₓ just applying the definition of cosine of an angle, as follows:

cos θ = \frac{x}{r}

In this case, x = F₂ₓ, and r = F₂

θ, measured from the positive x axis counterclockwise, is as follows:

θ= 180º + 53.3º = 233.3º

⇒ F₂ₓ = F₂* cosθ = 7.00 N * cos 233.3º = -4.18 N

The total component of both forces along the x axis, can be found just adding both components, as follows:

Fₓ = F₁ₓ + F₂ₓ = -5.28 N + -4.18 N = -9.46 N

5 0
3 years ago
5. In a local bar, a customer slides an empty beer mug on the counter for a refill. The bartender does not see the mug, which sl
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Answer:

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5 0
2 years ago
Can you help me please the question says
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Answer:

p= 4 m/v

Explanation:

v=l*w*h

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7 0
3 years ago
Suppose that, while lying on a beach near the equator watching the Sun set over a calm ocean, you start a stopwatch just as the
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Ans:  Let d is the distance from height to our eyes.

<span>Applying the Pythagoras theorem, we  get,</span>

<span>Check image: </span>

7 0
3 years ago
An electron travels 1.92 m in 4.47 × 10−8 s. How fast is it traveling?<br> Answer in units of m/s.
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Speed = (distance covered) / (time to cover the distance).

             =  (1.92 meters)  /  (4.47 x 10⁻⁸ second)

            = 42,950,000 meters/second  (rounded to the nearest 10,000 m/s)

That's about  96.1 million miles per hour, or about 14% of the speed of light.


6 0
3 years ago
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