Recent content by physics_ash82

Thanx I figured it out I was using the right formula and had forgotten that the mass of the proton is 1.67x10^-27 and I was using the charge which was 1.6 x10^-19.. but thank you for the idea on right hand rule that helped with the 2nd part. ash:smile:

magnetism Hi I'm stuck on this problem I its got to be something simple.Here goes... A proton moves perpendicularly to a uniform magnetic field B at 1.0x10^7 m/s and exhibits an acceleration of 2.0x10^13m/s^2 in the + x-direction when its velocity is in the + z-direction. Determine the...

so I would use the formula a=Aw^2cos(wt)

ok I need help starting this problem. I always have trouble seeing which formula to use so ant thoughts would be helpful A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 40.0 vibrations in 30.0 s. Also, a given maximum travels 425...

well that is what chapter it is in sry I didn't really know what to put in heading. Thanks though ash

A 500-g block is released from rest and slides down a frictionless track that begins 2.00 m above the horizontal as shown in the figure. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a constant of 20 N/m.find the maximum distance...

so will the angles made on the triangle be 45degrees? and I use them in my calculations?

A stuntman whose mass is 70 kg swings from the end of a 4.0-m-long rope along the arc of a vertical circle. Assuming he starts from rest when the rope is horizontal, find the tensions on the rope that are required to make him follow his circular path,(a) at the beginning of his motion, (b) at a...

:blushing: ooh...thanks for the help :smile:

Ac= v^2 / r 12^2 / .100 which I got 1440. and the answer is 14.4

A 0.150-m-radius grinding wheel, starting at rest, develops an angular speed of 12.0 rad/s in a time interval of 4.00 s. What is the centripetal acceleration of a point 0.100 m from the center when the wheel is moving at an angular speed of 12.0 rad/s?

thanks for the replys I had seen my error after my post I was using the mean value theorem instead of rolles theorem opps:blushing: thanks for the replys though

Ok I think I can use Rolles theorem on F(x)=x^2+3x on the inteval [ 0,2] because the derivative can be defined so then I think I use the formula [f(b)-f(a)] / [b-a] to find f'(c), then set f'(c) = F'(x) and solve is this process right?:shy:

Thank you I might need more help later :wink:

Im supposed to find the critical numbers for the function: F(x)= x^3-12x^2 I think I did it right I just needed some reassurance, I got F'(x)= 3x^2-24 =3x(x-8) =3x=0 and x-8=0 so the critcal numbers are x=0 and x=8 I think:shy: I hope someone can tell me if I did this right...