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Alik [6]
4 years ago
6

Which best explains what will happen if Sharilyn unscrews a bolt with a short handled wrench?

Physics
2 answers:
bezimeni [28]4 years ago
8 0
The last choice is the correct one.  This is the reason that wrenches
have long handles. 

If the bolt is really stuck or rusted on there, a person who is careful
and knows what he's doing will sometimes put one end of a 2-ft pipe
over the wrench-handle, and then push on the other end of the pipe. 
Pushing on a point that's farther away from the bolt always makes it
easier to unscrew.
zepelin [54]4 years ago
8 0

The correct answer is D)

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Sure, the frequency is 500Hz

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Sure, the frequency can be calculated. The needed information which is the speed and wavelength of the wave are known.

Wavelength is the distance between two successive crest and trough of a wave.

Using the relationship

V = fλ

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Given v = 100m/s, λ = 10cm/0.5 = 20cm

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3 years ago
How does the use of renewable sources of energy help to solve the problem of energy
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3 years ago
What could you do to find the density of a fork, knife, and a spoon?
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Water falls off a cliff of height 20m at a rate of 50kg per second
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Answer:

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In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is
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Answer:

(a) Electric force will be 77.285\times 10^{-9}N

(B) Velocity v=2.1522\times 10^6m/sec

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(A) According to coulomb's law electric force between two charges is given by

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

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We know that centripetal force is given by F=\frac{mv^2}{r}

So \frac{9.11\times 10^{-31}\times v^2}{0.546\times 10^{-10}}=77.285\times 10^{-9}

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