Recent content by WMM

1. Since V and R are known, solve for I which is current by dividing both sides of the equation by R. V = I x R R R I = V R I = 9 18 I = 0.5 Amps 2. Current = 0.05 Amps I managed to get the first 2 done. No I'm stuck on the last 3.

So the current is 2? What is that measured in, AMPS?

What do I use to figure out the problem? The only thing it gives me is 18ohms for the first one. Just completely lost and when I try to read about the Ohms law none of it makes sense.

I'm lot though I know about it but they tell you what Ohms law is and it confuses me.

Homework Statement 1. A nine volt battery supplies power to a cordless curling iron with a resistance of 18 ohms. How much current is flowing through the curling iron? 2. A 110 volt wall outlet supplies power to a strobe light with a resistance of 2200 ohms. How much current is flowing...

Homework Statement 1. A block of aluminum weighing 140.0 g is cooled from 98.4° C to 62.2° C with the release of 1080 cal of heat. From these data, calculate the specific heat of aluminum. 2. A total of 54.0 cal of heat are absorbed as 58.3 g of lead is heated from 12.0° C to 42.0° C...

So now I need to. 1.10 meters divided by 5 (steps) = 0.22 meters 50 kg x 9.81m/s^2 x 0.22 m = 103.005 joules Is that correct? That would be for each step?

It doesn't say any where in the problem that each stairs are different heights. I'm pretty sure that each step is the same height. If they aren't then how would I go about solving each different step when I'm only given the total height. The only possible way would be to divide the total...

Now wouldn't I just divide 539.55 Joules by 5?

50 kg x 9.81m/s^2 x 1.10 meters = 539.55 megajoules Correct :D ?

My schooling is online I don't have a textbook so keep that in mind. I honestly have no idea what the measurement would be. I did: 50 x 9.81 x 0.1818 Am I doing this wrong lol?

88.29 So now what unit would I measure that in?

g = 9.81 m/s2 = 32.2 ft/s2 So now how would I go about this equation with that? Of course with meters now to.

I'm pretty sure each step is about 0.1818 meters or 7.15818 inches. 50kg x gravity x 7.15818 inches What's the gravity?

U = mgh Would that be the equation I use? There are several equations... 0.9090909090909091 If you divide 1 by 1.10 meters you get what's above. But I don't get what to do with the mass and the 3 1/2 inches...