A12-kg projectile is launched with an initial vertical speed of 20 m/s. it rises to a maximum height of 18 m above the launch point. what is the change in mechanical energy caused by the dissipative (air) resistive force on the projectile during this ascent

Which term best describes the phrase “something that happens”?

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.

Which inventor was often called the lady edison