tfeemstertyreese1616 tfeemstertyreese1616

03-11-2016
Physics

contestada

A child throws a penny straight down into a wishing well. The penny's initial speed is 2 m/s. If the penny takes 3 seconds to hit the water, how deep is the well?

Respuesta :

03-11-2016

[tex]L = v_0\cdot t + \frac{1}{2}gt^2[/tex]

In this case v_0 = 2 m/s and t=2
Putting everything in will be

[tex]L = 2\cdot 3 + \frac{1}{2}\cdot9.82\cdot 2^2 = 6 + 19.64 = 26[/tex]

So the answer is 26 m.

Answer Link

Otras preguntas

What are the costs associated with inflation?

What persuasive technique is being used in the text? a. appeal to emotion C. b. appeal to intellect or reason d. appeal to character discredit the other point o

A microbiologist is in the process of classifying a newly discovered organism. Its characteristics include: · eukaryotic · multicellular · reproduces by spo

The major asked me to have a drink with him and two other officers. We drank rum and it was very friendly. Outside it was getting dark. I asked what time the at

What about the arts of asia and north america is different from the european arts you've been studying? which do you prefer and why?

A company purchased a tract of land for its natural resources at a cost of $1,500,000. It expects to mine 2,000,000 tons of ore from this land. The salvage valu

what do you prefer Cats or Dogs? Why?

Read the excerpt from Holes. He looked out the window at the vast emptiness. He watched the rise and fall of a telephone wire. In his mind he could hear his fat

What is the asymptote of the graph of h(x)=4x−2?

In Poland, the movement against communism was led by a. Thatcher. c. labor unions. b. Gorbachev. d. politicians.