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3 years ago

6 a) A sound wave in a fresh water lake takes 4 s to

Physics

1 answer:

Katena32 [7]3 years ago

3 0

Answer:

d=2962 m= 2,962 km

Explanation:

s=2*d, d is the depth

t=4 s

vH2O= 1481 m/s

d=?

s=vH2O*t

s=1481 m/s*4 s

s=5924 m

yields

d=s/2

d=2962 m= 2,962 km

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A speaker is designed for wide dispersion for a high frequency sound. What should the diameter of the circular opening be in a s

Greeley [361]

Answer:

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Explanation:

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here we know that

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6 0

3 years ago

A dry cell does 7.5 j of work through chemical energy transfer 5.00C between terminals of the cell . What is the electric potent

lisov135 [29]

Here's a useful factoid that you don't hear about very often:

1 volt means 1 Joule per Coulomb.

When 1 coulomb of charge falls or gets lifted through 1 volt potential difference, it gains or loses 1 Joule of energy.

If you want to lift 5 coulombs to a height of 1 volt, you have to give it 5 joules.

If you actually give those 5 coulombs 7.5 joules instead, they'll rise up to 1.5 volts above the potential where they started. The flowed through a potential DIFFERENCE of 1.5 volts.

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7 0

3 years ago

Two wheels having the same radius and mass rotate at the same angular velocity. One wheel is made with spokes so nearly all the

Mazyrski [523]

Answer:

C. The wheel with spokes has about twice the KE.

Explanation:

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