2 years ago

According to one of the laws of thermodynamics, energy cannot be what?

Physics

1 answer:

soldi70 [24.7K]2 years ago

5 0

Answer:

created or destroyed.

Explanation:

Learned this 3 semesters ago

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Find the velocity of a water wave in meters per second with frequency

Yuri [45]

Answer:

Velocity, v = 0.164 m/s

Explanation:

We have,

Frequency of wave, f = 0.04 Hz

Wavelength, $\lambda=4.1\ m$

It is required to find the velocity of a water wave. The speed of any wave is given in terms of wavelength and frequency. Its formula is :

$v=f\lambda\\\\v=0.04\times 4.1\\\\v=0.164\ m/s$

So, the velocity of a water wave is 0.164 m/s.

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3 years ago

Surveyors frequently use trig functions. Suppose that you measure the angle from your position to the top of a mountain to be 2.

Darina [25.2K]

Answer:

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Explanation:

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2 years ago

How much energy must be absorbed by water with a mass of 0.5 kg in order to raise the temperature from 30°C to 65°C? Note: Water

kvasek [131]

Answer:

73325J

Explanation:

Given parameters:

Mass of water = 0.5kg

Initial temperature = 30°C

Final temperature = 65°C

Specific heat capacity = 4190J/kg°C

Unknown:

Amount of energy absorbed = ?

Solution:

The amount of energy absorbed can be derived using the expression below;

H = m c Δt

H is the amount of energy

m is the mass

c is the specific heat

Δt is the change in temperature

H = 0.5 x 4190 x (65 - 30 )

H = 73325J

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The Milky Way Galaxy is (a) another name for our solar system; (b) a small group of stars visible in our night sky; (c) a collec

gtnhenbr [62]

Answer:

Explanation:

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2 years ago

In aircraft design, the pressure coefficient Cp is usually measured during wind tunnel testing of an aircraft component to predi

Elza [17]

Answer:

Check the explanation

Explanation:

From given data, it can be noted that 95% of given confidently data, means 5% of data is uncertain. According to the question, we have to calculate uncertainty in Cp .

Kindly check the attached image below for the step by step explanation to the question above.

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