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ElenaW [278]
3 years ago
12

Two swimmers relax close together on air mattresses in a pool. One swimmer’s mass is 48 kg, and the other’s mass is 55 kg. If th

e swimmers push away from each other,
A. their total momentum triples.

B. their momentums are equal but opposite.

C. their total momentum doubles.

D. their total momentum decreases.
Physics
2 answers:
Lera25 [3.4K]3 years ago
6 0

Answer:

b

Explanation:

lana66690 [7]3 years ago
6 0
B . their momentums are equal but opposite .
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If a 375 watt heater has a current of 5.0 A, what is the resistance of the heating element?
liberstina [14]
P=IV
V=IR

P=I(IR)
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7 0
3 years ago
……………………………………………………………..?
kotegsom [21]

Answer:

C

Explanation:

First find the electrical wattage

W = I^2 * R

R = 12 ohms

I = 2 amps

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Wattage = 4* 12

Wattage = 48 watts.

Now you need to use the power formula

Work = Power * Time

Work = ?

Power = 48 watts

Time = 3 minutes = 3 * 60 = 180 seconds.

Work = 48 * 180

Work = 8640 J

That's C

3 0
2 years ago
What do the arrows represent? gases mixing with particles liquid moving through a vacuum moving particles electromagnetic waves
stepladder [879]

Answer:

electromagnetic

Explanation:

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5 0
3 years ago
Which phrase best describes sir isaac newton's contributions to modern science and therefore to the industrial revolution?
astraxan [27]
Can you please give the phrases? 

But, I'll help what I can.

First, he was the first to discover gravity. He was not bonked by the head by an apple, rather he watched an apple fall from a tree before he decided to explore gravity further. 

He was also the first scientist to be knighted, which is a great honor, as you can expect. 

Newton also developed The Three Laws of Motion. They are extremely important to physics and are considered some of the foundation for physics today. 

He also discovered calculus, which is complex math that is very helpful to scientists today. 

He also discovered the color spectrum using a glass prism, a dark room and window shade with a hole in it. He was able to project the color spectrum onto a piece of paper.

Those are the few I can think of now, but hope it helps!


7 0
2 years ago
Describe the earth's rotation on it axis
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<span>Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.</span>
3 0
3 years ago
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