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VMariaS [17]
2 years ago
12

If you wanted to soundproof your bedroom, the best material to line the walls would be

Physics
1 answer:
Vsevolod [243]2 years ago
6 0

Answer:

a soft foam material because soft materials absorb sound better

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by how many times occur in the force of attraction between two bodies change when the distance between then is reduced to one th
xenn [34]

Answer:

<em>The force is now 9 times the original force</em>

Explanation:

<u>Coulomb's Law </u>

The electrostatic force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

Coulomb's formula is:

\displaystyle F=k\frac{q_1q_2}{d^2}

Where:

k=9\cdot 10^9\ N.m^2/c^2

q1, q2 = the particles' charge

d= The distance between the particles

Suppose the distance is reduced to d'=d/3, the new force F' is:

\displaystyle F'=k\frac{q_1q_2}{\left(\frac{d}{3}\right)^2}

\displaystyle F'=k\frac{q_1q_2}{\frac{d^2}{9}}

\displaystyle F'=9k\frac{q_1q_2}{d^2}

\displaystyle F'=9F

The force is now 9 times the original force

8 0
2 years ago
Which list of elements contains only metals?
fredd [130]
C. those are all metals.
6 0
3 years ago
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For this trajectory, what would the vertical component of acceleration for the module be at time tm=t0−σ=325s? Recall that accel
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I think its half of pie so you divid that by 3.14 .
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A metallic circular plate with radius r is fixed to a tabletop. An identical circular plate supported from above by a cable is f
Vinil7 [7]

Answer:

Solution is given in the attachments,below.

7 0
3 years ago
What is the jet stream and how does it separate cold air to warm air?
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Jet stream<span>ˈjet ˈˌstrēm/</span>noun1.a narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres.
(credit to google) 

4 0
3 years ago
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