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2 years ago

Compared to 2 kilograms of warm water, 2 kilograms of cold water will take up:

Physics

2 answers:

natka813 [3]2 years ago

5 0

A because water has more volume when it's warmer

natka813 [3]2 years ago

3 0

Answer:

The answer is A. less space hopefully this helps!

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1. Two forces act on a box as follows: F= 100 N at 02 = 170. and F2= 75 N at

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Answer:

yfv.

Explanation:

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2 years ago

What do MRI and ultrasound have in common as diagnostic imaging techniques? Check all that apply.

Gennadij [26K]

Answer:

low risk for tissue damage

uses radio waves

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2 years ago

Read 2 more answers

Infrared waves from the sun are what make our skin feel warm on a sunny day. If an infrared wave has a frequency of 3.0 x 1012 H

djyliett [7]

Answer:

The wavelength of the infrared wave is <u>0.0001 m</u>.

Explanation:

Given:

Frequency of an infrared wave is, $f=3.0\times 10^{12}\ Hz$

We know that, infrared waves are electromagnetic waves. All electromagnetic waves travel with the same speed and their magnitude is equal to the speed of light in air.

So, speed of infrared waves coming from the Sun travels with the speed of light and thus its magnitude is given as:

$v=c=3.0\times 10^8\ m/s$

Where, 'v' is the speed of infrared waves and 'c' is the speed of light.

Now, we have a formula for the speed of any wave and is given as:

$v=f\lambda$

Where, $\lambda \to \textrm{Wavelength of infrared wave}$

Now, rewriting the above formula in terms of wavelength, $\lambda$ , we get:

$\lambda=\dfrac{v}{f}$

Now, plug in $3.0\times 10^8$ for 'v', $3.0\times 10^{12}$ for 'f' and solve for $\lambda$ . This gives,

$\lambda=\frac{3.0\times 10^8}{3.0\times 10^{12}}\\\\\lambda=0.0001\ m$

Therefore, the wavelength of the infrared wave is 0.0001 m.

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3 years ago

Rami uses a disposable camera that has a flash. When he wants to take a picture, he holds a button and hears a rising whining so

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<span>It stores energy and delivers it in a short burst.

The whirring sound is produced by the charging of the capacitor. A capacitor is an electrical component which is capable of storing charge. When the capacitor stores charge, it is storing energy. After doing so, the capacitor releases the electrical energy that it had stored as light energy, which is seen as the flash of the camera. It must do so in a burst, because the intensity of the flash is very high and would require a high amount of energy to maintain.
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3 years ago

The nucleus of any atom requires a strong force to hold it together. This strong force is required because

astra-53 [7]

Answer:

<h2>The answer is.............................................................................................................................................................C</h2>

Explanation:

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3 years ago