What is the relationship between ecological succession and equilibrium (balance) in an ecosystem? Ecological succession leads to equilibrium in an ecosystem.
Ecological succession leads to equilibrium in an ecosystem.

Ecological succession prevents ecosystems from ever reaching equilibrium.
Ecological succession prevents ecosystems from ever reaching equilibrium.

There is no relationship between ecological succession and equilibrium.
There is no relationship between ecological succession and equilibrium.

Ecological succession and equilibrium are the same thing.
Ecological succession and equilibrium are the same thing.

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?

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped