Waves broadcast by a 1500-kHz radio station arrive at a home reciever by two paths. One is a direct path, and the second is by reflection off an airplane directly above the home receiver. The airplane is approximately 100 m above the home receiver, and the direct distance from the station to the...
A boat moves through the water with two forces acting on it. One is a 2000 N motor, and the o ther is an 1800 N restive force to the water. 1) What is the accelration of the 1000 kg boat?
Did I do this right?
a) (2000 cos 90 + 1800 cos 270 ) i + (2000 sin 90 + 1800 sin 270)j = 3800j N...
Hello,I was wondering how do you solve for this problem?
Yea, I thought about setting up a free body diagram but didn't didn't know which way to point the vectors.
The problem is this:
The force of on the sails of a sailboat is 390 N north.The water exerts a froce of 180 N east. If the boat...
We all know by Einstein's Special Theory of Relativty that when an objects at the speed of light, it could move foward in time quicker than the other people. However, I was wondering. Is time travel possible for going back into the past? Can we rewind time as if any two oppposites in nature...
A 5.0 g bullet leaves the muzzle of a rifle with a speed of 320 m/s, What force (assumed constant) is exerted on the bullet while it is traveling down the .82 m long barrel of the rifle?
This is what I have so far. : [.
(320)^2/(2*.82)=t
320/t=a
a= 62439
62439*.005
=312...
Hi. Can someone help me on these problems? I don't understand how to do it.
1) In an avalanche, a mass of snow and ice high on a mountain breaks llose and starts an esseentially frictionless "ride" down the mountain on a cushion of compressed air. If you were on a 30 degrees slope and an...