Recent content by kp

Force = kx F/x = k what is the Force...check your units.

a = 2d/t^2 a= 2m/s/s 9m/s/s is really fast, like crotch rocket fast

check your numbers again because your set-up is right, I got 33.77meters

yes..what is the term for the potential energy of a spring? what is the term for kenetic energy?

a) use a kinematic equation to solve for "d" , then use a kinematic equation to solve for "time" then add reaction time. b) resolve the components (sin & cos) the y component give you time

yes, and at point B you will have kenetic and potential energy. does h = 2r? no

geesh...I don't know about that one. metabolic work and mechanical work can not be measured the same way. search "Power Factoring" by Pete Sisco, he attempts to incorporate mechanical work with metabolic work when lifting weights, and has some pretty interesting formulas, maybe some from...

Force = mass*acceleration (isn't this some law) you have... Force - Ffriction = mass*acceleration you know F you know your masses what is friction? your freebody will tell

start with components. The box is at equilibrium, so the sum of all the forces = 0 in each direction. y comp = sin(theta) x comp = cos(theta)

anybody...?

Interesting info... so..I need to find the velocity of the moon around Jupiter by it's period? then use f' = f((1 -+ v(earth)/ c)/(1-+ v(moon)/c)) to find the change frequency?

Question: The variable period of a moon of Jupiter, which is the basis of measurement of the speed of light in Roemer's method (whoever he is), is regarded as the Doppler affect. The period of the orbital motion of one of Jupiter's moons is approximately 42.5 hours; the speed of light is...

use P1/T1 = P2/T2 ...solve for P2 = (P1*T2)/(T1) = P2 don't forget to convert C to Kelvins.

use the Van Der Waals equation for real gases.

energy is conserved So (top) mgh1 = mgh2 + 1/2mv^2 (smaller hill) you know everything but "h2", use algebra to find "h2"