. If the arrow represents a jet stream blowing from west to east, how will the cold front it is approaching be affected? * the jet stream causes the front to move in the wrong direction
the jet stream makes the front move in the opposite direction
the jet stream causes the front to slow down
the jet stream will cause the front to move faster

Which instrument is used to measure air temperature

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.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?