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RoseWind [281]
2 years ago
14

What would happen if the atmosphere consisted of pure oxygen.

Physics
1 answer:
mezya [45]2 years ago
5 0

Answer:

Then our fires would become massive.

Explanation:

Hope this helps

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a spring is stretched 20 cm by a 30.0 n force. determine the work done in stretching the spring from 0 to 40 cm?
Alekssandra [29.7K]

The work done when a spring is stretched from 0 to 40cm is 4J.

What is work done?

Work done is the magnitude of force multiplied by displacement of an object. It is also the amount of energy transferred to an object when work is done on that.

The work done on the spring to stretch to 40cm is,

F = kx

where F is force, k is force constant.

k = F / x = 10 N / 20 * 10^-2 m = 50 N/m

W = 0.5 * k * (x)^2

where W = work done, k = force constant.

W = 0.5 x 50 x (40 x 10^-2)^2 = 4 J.

Therefore, the work done on the spring when it is stretched to 40cm is 4J.

To learn more about work done click on the given link brainly.com/question/25573309

#SPJ4

3 0
1 year ago
Why is visual constancy important?
weqwewe [10]

Answer:

C.

Explanation:

Visual constancy is a key mechanism that allows the perception to remain.the same even as images change

#<em><u>CARRYONLEARNING</u></em>

4 0
2 years ago
Which of the following is not a characteristic of major depressive disorder?
Alex787 [66]

D chest tightness

I experienced these the past few days...

but hoped I helped ^_^

6 0
3 years ago
Read 2 more answers
the speed of sound in the air is about 340m/s. what is the wavelength of a sound wave with a frequency of 400Hz?
olga2289 [7]

Wavelength = (speed) / (frequency)

Wavelength = (340 m/s) / (400 /s)

<em>Wavelength = 0.85 meter</em>

5 0
3 years ago
During World War II, mass spectrometers were used to separate the radioactive uranium isotope U-235 from its far more common iso
mariarad [96]

Answer:

21.55 m

Explanation:

6 0
3 years ago
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