A Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Recall that
where
- is the final velocity of the train; 0 in this case, because the train eventually stops
- is the initial velocity of the train; 1.0 m/s in this case, because this initial velocity refers to velocity it starts with after one of the wheels gets stuck, and the train is initially traveling at a constant speed of 1.0 m/s
- is the acceleration we want to find
- is the change in the train's position; 5.0 m in this case
So we have
Dynamic equilibrium is a state in which the net external force and torque on a system moving with constant velocity is zero.
A force of 20 N is applied to a block.
The magnitude and direction of the frictional force is:
B ) 20 Newtons opposite the direction of the applied force.
Didn't we do this one yesterday ?
If two waves combine and the result has less amplitude than either of
the original waves, then there has been DESTRUCTive interference.
I think #3 is a compound microscope, but I'm not sure.
Anteaters they do not have teeth