What is measured by the amount of time a muscle group can sustain a contraction? A. Muscular endurance B. Muscular strength C. Cardiovascular fitness. D. All of the above

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.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?