Urgent Help Needed! (gases)
I need some urgent help with figuring out how to find the distance which 2 gases will meet in this question..
Given: Samples of HBr gas and NH_3 gas are placed at opposite ends of a 1.80 m tube.
Question: If the two gases are allowed to diffuse through the tube...
Some Dynamics Questions
I've been working at these stupid questions for hours and i just can't figure them out. Someone please help.
1) A student is pushing horizontally on a table (m = 16kg) to move it across a horinzontal floor. The coefficient of kinetic friction between the table and...
well i haven't really figured out how to start it... I don't think writing the distance as a function of time works in this case. This one is a projectile so it has x and y components which confuse me. :cry:
Also another questions:
A pool ball leaves a 0.60 meter high table with an initial horizontal velocity of 2.4 m/s. Predict the time required for the pool ball to fall to the ground and the horizontal distance between the table's edge and the ball's landing location.
Seems simple but...
Studying for a test and i cannot figure out how this is done...
A gold car moving at 12m/s passes a Green Car while the Green Car is at rest at a stoplight. The green car immediately accelerates at a rate of +1.8m/s^2 for 11 seconds. After how much time (relative to initial starting time)...
hey, i have to create an electric motor using a DC source and using coils wrapped using the left hand rule (not bar magnets).
Anyone know an easy way to go about this?
i guess it has to be something like this. http://fly.hiwaay.net/~palmer/motor1.gif
it must be usable with a battery and...