One of the major differences between our common Physics models of energy change and realistic models of them is In the Physics models, the acceleration due to gravity is rounded to a non-exact but easier to use number

In the Physics models, the velocities are only calculated at set intervals of time, instead of continuously

In the Physics models, the objects are assumed to have simplified shapes in order to make motion by acceleration easier to calculate

In the Physics models, we do not take into account the energy change by the friction of moving components

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.