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UkoKoshka [18]
4 years ago
5

Two protons move at speed v, one along the x axis and one along the y axis. What is the relative speed of the two protons? Evalu

ate your answer for the special case v = 3/5 c.
Physics
1 answer:
forsale [732]4 years ago
8 0

Answer:

0.85 c

Explanation:

When the two travel at right angles to each other , their relative velocity is given by the hypotenuse formed by the x and y direction velocities.

Relative velocity of the two protons is  given as

\sqrt{v^{2}+v^{2}} = (\sqrt{2} ) v

If v = 3/5 c , then the relative speed = \sqrt{2} (3/5c) =0.85 c

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8 0
3 years ago
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In a pig caller can produce a sound intensity level of 107 dB. How many pig callers would be needed to generate an intensity lev
myrzilka [38]

Answer:

20 pig callers

Explanation:

Given that:

A pig caller produced intensity level of  a sound = 107 dB

To find how many pig callers required to generate an intensity level of 120 dB;

we have:

120 dB - 107 dB = 13 dB

Taking the logarithm function;

10 \ log \bigg(\dfrac{I}{I_o} \bigg) = 13 \ dB

where;

I_o = initial intensity

log \bigg(\dfrac{I}{I_o} \bigg) = 1.3

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I = 19.95I_o

I ≅ 20 pig callers

6 0
3 years ago
Zak, helping his mother rearrange the furniture in their living room, moves a 60 kg sofa 5.9 m with a constant force of 40 N. Wh
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Answer:236 J

Explanation:

Given

Mass of sofa m=60 kg

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W=F\cdot s

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W=40\cdot 5.9

W=236 J

4 0
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