Recent content by sillybean

ah that worked. genius! thanks.

I meant the period of rotation formula T=2pi/w (angular acceleration)

[SOLVED] Kepler's Laws Homework Statement Consider an asteroid with a radius of 11 km and a mass of 3.8×1015 kg. Assume the asteroid is roughly spherical. a) What is the acceleration due to gravity on the surface of the asteroid? b)Suppose the asteroid spins about an axis through its...

yes i can :D thanks for the help. i hope the original poster gets this

well the kinetic energy of both blocks moving at the same velocity is exactly half of the kinetic energy of the first block in motion. which means? i have the same problem and I'm still lost. i'll take a guess though. since both the velocity and the kinetic energy of the first block are halved...

still need help. is my theory about distances being different right?

ah i see. so any other takers.

i did that W=1/2 (1/k1 + 1/k2)x^2 and this was wrong

it is (1/2k)x^2

Homework Statement Two springs, with force constants k1 and k2, are connected in series, as shown in the figure How much work is required to stretch this system a distance x from the equilibrium position? Homework Equations W=1/2kx^2 The Attempt at a Solution I have no idea how...

wouldn't you add the x and y values of the magnitude of the man and the water with the y value of the man and the boat?

thanks again you guys are life savers

[SOLVED] Application of the equations of motion with constant acceleration Homework Statement A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 4.0 m/s. Two seconds later the bicyclist hops on his bike and accelerates at 2.2 m/s^2 until he...

that one worked. thanks amarett0!

looking over conservation of momentum, i don't think that's how i need to solve the problem seeing as how I haven't been taught that. Besides that, I have no mass included in the problem. I'm pretty sure I have to use one of the equations that relate velocity, time, position and acceleration...