Does electric field vary with distance? For example, When I fix an electron along an axis and then fix another electron let's say 5m along the x-axis from the first, the first electron has an electric field that is creating a force on the other electron. If I free the second electron to move...
if you have a rope or slinky and send a single pulse through the medium (for example a crest), the crest travels all the way to the end of the rope basically at the same height. I know that for disturbances to be waves, the motion must be rhythmic and one component of a wave is a restoring...
okay this is all making sense but when I send a single wave pulse (such as a crest) through a rope for example, why does gravity as a restoring force not push this pulse down to the equilibrium position to the trough and then pull it back up to form a crest?
When we did experiments with a rope...
Thanks! That helps a lot to understand that you need a restoring force to create waves because I was always kinda confused on how waves were actually formed beyond just giving a medium energy or a disturbance.
Is this restoring force of gravity in water waves or tension and gravity in...
Hey thanks for the response! I am really interested in what you are saying but I think what I am trying to get at is that if a force as small as that coming from my hand can move a spring then can a force like gravity (which I know is not very strong though) cause wave motion between air...
When you move your hand with a slinky in it, the slinky begins to move because you gave energy from your hand to the slinky. A wave is not always formed, but when the disturbance from your hand is rhythmic, a wave will form. Is this right so far?
A force acted on the slinky and caused a...
I think I understand that part well its why in an elastic collisison in this situation, the first car would come to a stop while in an inelastic collision like my example they continue to move forward with a reduced velocity.
why is the opposite reaction force the nonmoving car applies to...
Lets say that I have a cart on a track with silly putty on the end. This first cart is moving with an initial "x" velocity. There is another cart about a foot ahead of it with sillyputty on its bumper also. (Both carts have the same mass) This cart has an initial velocity of zero. Of course...
Thank you! Last comment: if it was a completely elastic collision, no loss of energy, and pavement does NOT give at all (the ball simply hits and bounces), then would the ground decelerate the ball with the force it applied which since there is no give or deformation would this be the...
So the elastic forces created as the ball compresses must propel the ball to its original height right? I do not think the pavement applies a constant force, so when the ball bounces back, is the force applied to the ball as it leaves the pavement the same as when it just contacted the...
And the force the ball applies to the ground is what the ground applies up on the ball to slow it down, right? But then how does the ground push the ball back into the air? The ground has already provided its reactionary force to slow down the ball to a velocity of zero?
So when a falling object collides with the ground is the force the ground exerts up on the object not constant then since the ground gives?
I am simply trying to understand the forces in a free body diagram of the ball in different stages of the collision. The ball strikes the ground with...
Does a falling object hit the ground with a force of its mass times "a" of gravity?
Hi,
When an object is falling through the air and in free fall with no air resistance, the applied force is the net force on the object: the object's mass times the acceleration due to gravity (or...
I agree with JHamm...the object or satellite will always want to travel in the direction and magnitude in which it is already traveling according to Newton's first law. The satellite orbiting a planet had an initial velocity and is trying to move forward. No force is acting horizontally on...
I am sure that centripetal force is not a fictitious force. We have learned about that for a week or two in physics and I have seen many websites derive it. I think you may be misusing the term. CentriFUGAL force is a fictitious force not centripetal force.
And I am also 100% sure that the...