Question:

Homework Help? Physics.?

by Guest64714  |  earlier

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Okay I got 2 questions I need assistance in. heres the first one.

This one I set up completely but I don't know what to do now in this part, Im stuck.

(4.8 X 10^7 cm3/room) X (1 ball/28.7cm3)=4.8 X10^7/28.7 (balls/room)

heres the question if it helps any

Estimate the number of table tennis balls that would fit (without being crushed) into a room that is 4m long, 4m wide, and 3m high. Assume that the diameter of a ball is 3.8cm.

What I did was change the meters into centimeters and got the answer to be 4.8 X 10^7cm3. Then I found the area of the ball which came out to be 28.7cm3.

So any help on that?

Now this one is just confusing, I don't know if I just choose one to do or do both, and Im confused on what I did. Heres the questions.

A billionare offers to give you either

A.$5 billion dollars if you will count out the amount in $1.00 bills OR

B. A lump sum of $5000.

Which offer should you accept? Explain your answer.

I know this is long but I only barely get dimensional analysis. Once I set things up or finish setting up then I get stumped and nervous and then I forget what to do.

PLEASE help (all answers do have to be answered in dimensional analysis format, similar to the way I set up the equation in the above.)

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  1. I will answer the billionaire question... take the $5,000.  Counting $5 Billion at $1 increments at 1 second per $1 will take 158 years.

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