Two tables each have a mass of 29 kg. If the gravitational force between them is 4.24 100 N. how far apart are they? G - 6.67 10 11 N-(m/kg)2
A. 11.5 m
B. 10.23
C. 12.01 m
D. 9.55 m

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.)

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

ill do it for 100, also this isnt 80 its 40

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000