Acharge of 6.4 × 10–7 c experiences an electric force of 1.8 × 10–1 n. what is the electric field strength?
a. 1.1 × 10–7 n/c
b. 3.6 × 10–6 n/c
c. 8.2 × 100 n/c
d. 2.8 × 105 n/c

What is hidden during a lunar eclipse? isn't the moon hidden?

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

What is the momentum of a 2 kg object moving at 15 meters per second