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3 years ago

13

You are traveling through the forest and encounter an ancient well. You want to know how deep the well is. If you drop a coin an

d hear it hit the bottom of the well in 3 seconds, how deep is the well?

2 answers:

eimsori [14]3 years ago

4 0

Answer:

About 30 ft

Explanation:

horrorfan [7]3 years ago

3 0

Depth = 1/2 x 9,8 x 9 = 44.1 m

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3 years ago

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pishuonlain [190]

Explanation:

It is given that the number of electrons passing through the cross-sectional area in 1 s is $3.4 \times 10^{18}$ . Also, we know that charge on an electron is $-1.60 \times 10^{-19} C$ , then negative charge crossing to the left per second is as follows.

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3 years ago