3 years ago

Which instrument is not used to measure air pressure

Physics

1 answer:

Virty [35]3 years ago

5 0

It would be b. anemometer. it measures the speed of wind or any current of gas.

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A tank contains 0.568 mol of molecular nitrogen (N2). Determine the mass (in grams) of nitrogen that must be removed from the ta

Marizza181 [45]

Answer:

$\Delta M = 7.812 gm$

Explanation:

we know that for ideal gag we have

pV =nRT

Since volume, gas constant R and T are constant, so we have

$\frac{p}{n] = constant$

$\frac{44.7}{0.568} =\frac{22.8}{n}$

n = 0.289 mole

hence mass removed $\Delta M =( 0.568 - 0.289)*( molecular\ weight\ of \ nitrogen)$

$\Delta M = (0.568 - 0.289) *28 gm$

$\Delta M = 7.812 gm$

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4 years ago

Rewrite the following sentence in the negative form >Each library contains 3000 brand new books

otez555 [7]

None of the libraries have up to 3000 brand new books

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2 years ago

A 1,500 kg car’s speed changes from 30 m/s to 15 m/s after the brakes are applied. Calculate the work done onto the car from the

HACTEHA [7]

The work done onto the car is 506,250 J

The work done on a system implies an increase in the internal energy of the system as a result of some forces acting on the system from the outside.

From the parameters given:

The mass of the car = 1500 kg
The initial speed = 30 m/s
The final speed = 15 m/s

The work done onto the car refers to the change in the kinetic energy (i.e. ΔK.E)

$\mathbf{=\dfrac{1}{2} mv_1^2 -\dfrac{1}{2} mv_2^2}$

$\mathbf{=\dfrac{1}{2} m(v_1^2 - v_2^2)}$

$\mathbf{=\dfrac{1}{2} \times 1500 \times (30^2 - 15^2)}$

= 506,250 J

Therefore, we can conclude that the work done on the car is 506,250 J

Learn more about work done here:

brainly.com/question/18762601

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Fuel cells have been developed that can generate a large amount of energy. For example, a hydrogen fuel cell works by combining

maksim [4K]

Electric power is given by:
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10000 = 15.8V
V = 633 Volts

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4 years ago

A passenger in a car is holding an open water bottle when the car stops suddenly. Why does the water in the bottle splash out wh

OlgaM077 [116]

Answer:

The answer is It has inertia

Explanation:

I just got it correct on E2020

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4 years ago

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