Write a quadratic function given the following information 18. The parabola opens downward and has zeros at (5,0) and (-3,0) 19. The parabola opens upward and has zeros at (-7,0) and (14,0) 20. The parabola opens downward and has a vertex at (4,-3) 21. The parabola opens upward and has a vertex at (-6,5) Still to come in this unit: 1. Graphing quadratic functions 2. Transformations of a quadratic equation

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

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.

Does anyone have the answers to online physics course plato course physics, semester a v3.0