Recent content by wisper

Ok, I am having a hard time understanding how to approach this problem the correct way interms of physics. A cannon shoots a ball going a total distance of 79.5 meters, clearing a wall 67.5 meters away from where it was initially shot. The wall is 17.58 meters high, what is the allowable...

Thanks to both of you. Clive you pointed out a part in which I made an error in my thinking of my previous answer. Appreciate the help.

That is the full question, the current is running through a hollow cylinder. From how I understand the current is flowing through direction of the hieght of the cylinder.

I understand that it needs to relate to the following equation but that is it. B=\frac{\mu_{0} I}{2\Pi r} I am unsure how to derive an answer for this, I am drawing a blank on solving this. Can anyone give me any helpful hints?

Thank you.

What you started out with inquiring was correct: y = \frac{1}{2}gt^2 I was semi wrong in stating you did not need this equation, you know that the hunter is shooting straight meaning the angle (a) is 0. x = vt\cos{a} \rightarrow x = vt\cos{0} \rightarrow x = vt With solving for t...

Before you start going through equations and trying to solve this I just need a simple question answered about this problem. 1) Is it correct for me to assume that the pressure on both walls is equal? If so, I think the normal stress of the aluminum and steel bars are equal. Problem...

This is just like your your monkey problem with the exception of wanting to hit the monkey before it hits the ground at a certain Y coordinate you want to land on the ramp at a certain Y coordinate. Does that help or more info needed?

From your book, you should know that the velocity in the x and y are separate. You solved the first part with knowing the amount of time it takes for the monkey to fall. All you need now is to know the amount of time it takes for a dart to go 90 meters.

Thank you, for putting it clearly.

I am having too hard of a time with such a simple magnet equation that I am starting to loose it. A particle with a mass of m carries a negative charge of - q. The particle is given an initial horizontal velocity that is due north and has a magnitude of v. What is the magnitude of the...

E = q/(4*pi*K*(epsilon_0)*(d^2))