2.1.4 Quiz: Conservation of Energy Question 4 of 10 Which equation correctly relates mechanical energy, thermal energy, and total energy when there is friction present in a system? O A. Etotal = ME + Ethermal O B. Etotal = ME - Ethermal O C. Etotal = ME x Ethermal O D. Etotal = Ethermal - ME SUBMIT

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

What is the most useful equation for electric power?

Decreased sensitivity to an unchanging stimulus is known as