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Ad libitum [116K]
2 years ago
12

Which type of surface is best for absorbing sound waves?

Physics
2 answers:
sergiy2304 [10]2 years ago
6 0

I think it's B (foam) it may not be though

weeeeeb [17]2 years ago
4 0
I believe it is D) foam
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What the law of physics?
Elanso [62]
The basic laws of physics<span> fall into two categories- classical </span>physics<span> that deals with the observable world, and atomic </span>physics<span> that deals with the interactions between elementary and sub atomic particles</span>
5 0
3 years ago
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.2589 N when separated by
Harlamova29_29 [7]

Answer:

q_1 = 7.19 \times 10^{-6} C

q_2 = -1.0 \times 10^{-6} C

Explanation:

Let the initial charge on the two spheres are

q_1, -q_2

now we know that the force between them is given as

F = \frac{kq_1q_2}{r^2}

0.2589 = \frac{kq_1q_2}{0.5^2}

q_1q_2 = 7.19 \times 10^{-12}

now when two spheres are connected then final charge on them is given as

q = \frac{q_1 - q_2}{2}

now the force between them is given as

0.3456 = \frac{k(q_1 - q_2)^2}{4(0.5)^2}

now we have

q_1 - q_2 = 6.19 \times 10^{-6}

So by solving above two equations we have

q_1 = 7.19 \times 10^{-6} C

q_2 = -1.0 \times 10^{-6} C

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3 years ago
If Zack has a mass of 80 kg calculate his weight on Earth. Please show work, thank you!
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3 years ago
Part 1. Define the following terminologies
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Answer:

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Explanation:

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hope that helps!!
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