Recent content by mystry4

I need further explanation on the following so I can understand it more completely. I know that the theory of relativity /space and time are connected with the invention of the syncoronized clock and time zone division, and that Einstein originally used train travel to explain his theory (I am...

Am I correct in assuming that if the distance between two poles of different magnets is halved, then the force of repulsion (or attraction) will increase while the attraction (or repulsion) will decrease? If the distance is halved, isn't the force quadrupled? Thanks.

so, the formula I typed above is correct and could be used with 2 oxygen atoms, 3 cm apart and each have 2 extra electrons ? Wouldn't I get a -2 charge? (-2)(-2) / 3cm ??

Can someone explain this law to me in simple terms? I know that it is the electrostatic force between 2 charged objects in relation to the quantity and inversly related to the square of distance F=K q1 q2 / d^2 ..but what if you have atoms that are spearated by a certain distance and have...

Hmm... THAT is what I get for trying to do too many things at once! Of course, 5 x 3 = 15, geez...I need a vacation!

So, W = Force applied x distance would be 5N(the push) x 3 m = 8J. The 2N of frictional force is one of those informational numbers and not one used in the formula?

Am I doing this correctly? If a book that weighs 7 N is picked up off the floor and put on a shelf 2 m high, the work done on the book would be W = Fd (7N)(2m) = 14 J If the same 7 N book is slid under the bookcase 3 m away, with a pushing force of 5 N and a frictional opposing force of 2...

I know that a rocket flying through space can burn fuel, which has mass, at a constant rate, thus a constant forward force. But does the acceleration of the shuttle increase or decrease with time, or does it just stay the same?

Well that makes sense...and probably why a HINT was put in there (HINT: Think about this a bit before writing down any equations!) So, I amanswering that the net force is O because of continual velocity and no acceleration. Thank you for your help

I am being asked to find the net force on the box.

If you have a 25N sideways force on a 10kg box that moves at speed of 5 m/s, what is the formula? I used F = m*a and got it wrong. :confused:

I need to make sure I am using the correct formulas (dvertical = 1/2at^2 solving for t^2 and dhorizontal = volt) for the following problem: arrow shot horizontally - speed of 100m/s - at bullseye 25 m away. How long til it reaches target and where will it hit target. Thanks! :confused:

Thank you! That helped me solve the problem!

I have just started a Physics class after having been away from algebra and equations for quite awhile. This is probably a very silly, elemenetary question, but here goes: With falling objects, I understand that g=10m/s2 and I know the formula that is used, however, I am working with only one...