An astronaut weighs 104n on the moon and the strength of gravity is 1.16n/kg what is her mass on the moon what is weight on earth? (g=10n/kg) what would she weigh on mars? g=3.7n/kg) also, i need to show work for all and its due tomorrow, september 25, 2018

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

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.

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car