What is the equation for the electric field caused by an infinite plate of charge? Is it sigma/2epsilon0?
So does that mean that the distance from a point to the plate doesn't matter in computing the E field? How does this change if a solid conducting slab with significant thickness (2 cm)...
I am having trouble understanding another of my homework problems.
A Pellet gun fires ten 2.14 grams pellets per second with a speed of 483 m/s. The pellets are stopped by a rigid wall. a) find the momentum of each pellet. b) Calculate the average force exerted by the stream of pellets on the...
The handle of a floor mop of mass m makes an angle theta with the vertical direction. Let muK be the coefficient of kinetic friction between the mop and the floor and muS be the coefficient of static friction. Neglect the mass of the handle.
a) Find the magnitude of the force F directed...
Sorry, I forgot to read the errata concerning this problem. How does the change in speed of an object affect the angle between the acceleration vector and the velocity vector at a point. In UCM, the acceleration vector is perpendicular to the velocity vector. If the object's speed is increasing...
"An object moves clockwise with decreasing speed around an oval track." There is also a drawing with two velocity vectors drawn. I was able to draw the vector "delta"-v, based on the two velocity vectors, but how does it change as one point moves closer to the other? In UCM with constant...
I understand Uniform Circular Motion and an object's acceleration while in UCM. But, how does that change when an object moves around an oval? Does the acceleration vector point more towards the line tangent to the oval than just to the center? What if the object itself has increasing or...