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victus00 [196]
3 years ago
14

Cecily is inflating one of her bicycle tyres with the pump below. When she pushes the plunger down, does the volume of the gas i

n the
cylinder increase, decrease or stay the same?

Physics
1 answer:
Alexxandr [17]3 years ago
8 0

Answer:

See the explanation below

Explanation:

This problem can be better understood graphically, so in the attached image we will use a diagram of a positive displacement air pump.

We can see that when she pushes the plunger, we see that the volume decreases.

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what is the wavelength of light (in nanometers) that has a frequency of 1.75 x 1013 hz? the speed of light is 3.00 x 108 m/s.
Leokris [45]

The light has a frequency of 1.75 x 10¹³ hz. The speed of light is 3.00 x 10⁸ m/s. The wavelength of light is (λ) = 1.714 x 10⁴ nm

<h3>What is wavelength?</h3>

When a wave that propagates in a medium it has different lengths. That length of the wave is called the wavelength. It can be measured in m, cm, nm etc.

<h3>How can we calculate the wavelength?</h3>

To calculate the wavelength we are using the formula,

λ=c/f

Here we are given,

c= The speed of light in zero space. = 3.00 x 10⁸ m/s.

f = The frequency of the light. = 1.75 x 10¹³ hz.

We have to calculate the wavelength of the light = λ m

Now we put the values in above equation we get,

λ=c/f

Or, λ=3.00 x 10⁸ / 1.75 x 10¹³

Or,  λ= 1.714 x 10⁻⁵ m

So we can easily say that,

The wavelength of light is (λ) =1.714 x 10⁻⁵ m = 1.714 x 10⁴ nm

Learn more about wavelength:

brainly.com/question/10728818

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5 0
1 year ago
An ideal blackbody is an object that __________.a. absorbs most of the energy that strikes it. b. only absorbs energy at ultravi
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Answer:

c. absorbs all the energy that strikes it.

Explanation:

<em>An ideal black body is an object that absorbs every light energy (irrespective of the wavelength and direction) that strikes it without reflecting any in return. </em>

<em>Such objects or bodies usually appear perfectly black and will only emit radiation when heated to a very high temperature.</em>

6 0
3 years ago
If you add together all of the forces exerted on a object and get a non zero value that is called
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Hello There!

<em>If you add together all of the forces exerted on a object and get a non zero value that is called the "NET FORCE" of the object</em>

3 0
3 years ago
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Find the direction of this vector
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Answer:

125 degrees

Explanation:

180 - 55 = 125 degrees

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2 years ago
Explain how the gravitational potential energy of an object can be changed.
inna [77]

Answer:

Change in Potential energy, pe = Final potential energy - Initial potential energy

Explanation:

∆p.e = Final p.e - Initial p.e

From the equation ∆p.e = (mgh) final - (mgh) initial

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3 years ago
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