Recent content by go2cnavy

For an Ideal spring...At half Amplitude, what % of the energy is kinetic? I know at A the kinetic energy it instantly zero which makes max potential energy (.5kx^2) I also know that after released, at the instant passising through the equilibrium point kinetic energy is max and potential...

Got it thanks. V(theta)^2=V(top)^2+2g(1-COS(theta)) Right?

I know that for angular velocity (w = d angle/dt). But how in the world do we get to Speed?

These are tough for me. How do I go about setting up an algebraic equation to solve for the velocity of a marble at Angle theta? Q: A marble spins in a vertical plane around the inside of a smooth, 20--diameter horizontal pipe. The marble's speed at the bottom of the circle is 3.0 m/s. The...

back to top with updated infor

Collision problem UPDATED I messed up the first post. My cut/paste function malfunctioned. There should be sufficient information now. Sorry for the confusion. Two 500 g blocks of wood are 2.0 m apart on a frictionless table. A 10 g bullet is fired at the blocks. It passes all the way...

Thank you very much for all of your time and suggestions. I hope it wasn't too boring for you.

I understand and did not intend to rush you.

I agree. She is in Venture(gifted) classes on Wednesdays and is out of her normal class room. Her primary teacher gave her this on Wednesday as home work because she missed class. She is a brilliant kid, but her gift is more for the arts. She taught herself to read by the age of three...

wow...my daughter is 9 and still has some difficluty doing long division. She does not enjoy math enough yet for a problem like this. Her attention span with respect to mathematics is very minimal.

I understand this. Thank you very much. BUT is my 4th grade daughter expected to follow this same format? Or do you see this as a plug and chug method of a math game to stumble upon the correct answer? This seems far to complicated to expect a 4th grader to do. Is there possibly a more...

I am sorry for the poor formatting. There is to be only one multiplication involved. the subsequent X's below the first(equals) are the products of the multiplication with the 5 digit final result being the answer.

why can 5 be the only units digit in each solution

I don't understand the comment "units" digit. PLease clarify if you have time

My daughter just came home with this problem and I feel really stupid cause I have looked it over for an hour and cannot get it. I just finished a calc II refresher course and maybe I am overthinking(nuking) the problem. Sure, I can randomly plug and chug some numbers through my calculator...