Two charged particles experience a gravitational force of 1.4 * 10 ^ - 8 * N and an electric force of 1.3 N. The 1.5 g particle has a 2.1 * 10 ^ 6 * C charge and is separated from a 6.7 particle. What is separation distance and what is the charge of the second particle ?

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

c) up is the direction the magnetic force is acting on the charge.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg