At one point in a pipeline, the water's speed is 4.37 m/s and the gauge pressure is 46.4 kpa. find the gauge pressure at a second point in the line, 11.2 m lower than the first, if the pipe diameter at the second point is twice that at the first. remember that the density of water is 1000 kg/m^3. give your answer in units of kpa.

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none 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.