A.) How fast is the coaster traveling at the bottom of the loop-de-loop. B.) Find the velocity of the coaster at the top of the loop-de-loop.
C.) Find the velocity at the end of the ride. (at 35 m)
D.) If a giant spring were placed at the end of the ride (35 m high), determine the spring constant necessary to stop the coaster in 1.8 m.
E.) If 60% of the original energy is lost due to friction, determine the velocity at the end. (35 m)

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.

How is zig zagging a form of acceleration?

Which describes an object in projectile motion? check all that apply. a.gravity acts to pull the object downb. the object moves in a straight path. c.the forward velocity of the object is 0 m/s. d.the object’s inertia carries it forward. e.the path of the object is curved.