Recent content by littlkj5

I really don't know what I did that was wrong. The answer I submited was 1835 which was correct. I appreciate the help on such a simple question. I took math up to calc so I should have figured that out. . . sad. . .

I wonder what I did wrong. So you are saying it is 1.835x10^3

1.835x10^(-28)

Homework Statement If the mass of a hydrogen atom is 1.67*10-27kg and the mass of an electron is 9.1*10-31kh, how many electrons would be required to have a mass equivalent to one hydrogen atom? Homework Equations The Attempt at a Solution I tried dividing them into each other...

I did this because it said half of its volume is underwater so therefore I assume it was 500. So then I did the division. I guess I over thought the question. More than what was needed.

so which equation would that be?

I found that the density equation was Density=Mass/Volume.

Homework Statement A block of wood of uniform density floats so that exactly half of its volume is underwater. The density of water is 1000 kg/m3. What is the density of the block? Homework Equations The Attempt at a Solution I tried 500 kg/m3 divided by 1000 kg/m3

Thanks. That is all the information I received on the question. A hint that was given was:[Hint: you can work in proportions without having to numerically solve for either of the centripetal forces required on the two masses]

Homework Statement Two 3 kg masses are attached to a string at r1=.5m and r2=1.5m from where the string is held in your hand. You swing them around together at 2 revolutions per second, each of them. The tension holding mass 2 (the distant part of the string) is what fraction of the tension...