A point charge, q, is at the center of a sphere of dielectric material. The sphere has a radius a and dielectric constant, Er. The sphere of dielectric material is surrounded by a thick neutral conducting shell with inner radius a and outer radius b. Determine the electric field in each region. Determine the bound charge densities, both o, and pb, for the dielectric sphere. b a

Can you please do all of them. Thank you so much

which option is correct and why

XLR8. The graph on the right shows the acceleration of an object across time. Which of the following graphs below shows one of the possible velocity vs. time graph of the object? a 2 2 4 -1 2 2 4 -1 2 4 -1 2.

3) Find both the parts.

Do just 20,22

please help! Each option can only be used once!

can someone please help?

I need help in on 5, 6, and 7

F13–2. If motor M exerts a force of F = (10r + 100) N on the cable, where t is in seconds, determine the velocity of the 25-kg crate when i = 4 s. The coefficients of static and kinetic friction between the crate and the plane are µ, = 0.3 %3D and uz = 0.25, respectively. The crate is initially at rest. м