How far apart should two protons be if the electrical force of repulsion on each one is equal to its weight on the earth? (k = 1/4πε0 = 9.0 × 109 n • m2/c2, e = 1.6 × 10-19 c, mproton = 1.67 × 10-27 kg)?

Distinguish between a transverse wave and a longitudinal wave.

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?

To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =