Light of a certain wavelength passes through a pair of double slits with separation
18.00 micrometers (um) and falls on a
screen. If the angle between the center and
1st interference maximum is 1.500°, what is
the wavelength in nanometers (nm)?
[?] nm

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2