PLS HELP NOW The members of a family observed that their water meter was showing unusually high water use. They thought of two methods to solve this problem.

Method 1: Run the dishwasher and clothes washer only when they are half full.
Method 2: Check all the faucets and pipes in the house to mend leaks.

Which of these statements is most likely correct about the two methods of water conservation?

Method 1 is ineffective.
Method 2 is not practical.
Method 2 is difficult to implement.
Method1 is not healthy for humans.

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.

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?