An elite tour de france cyclist can maintain an output power of 470 w during a sustained climb. part a at this output power, how long would it take an 88 kg cyclist (including the mass of his bike) to climb the famed 1100-m-high alpe d'huez mountain stage? neglect any friction.

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.

Why don't you see your reflection in water with waves or repples

Idon’t know the answer to it and am stuck.