Would a planet of radius 3.0 x 10^5 m and mean density 4.0 x 10 kg/m^3 be able to keep nitrogen in its atmosphere if the mean temperature were 700 K?​

the one with the highest speed

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.

answer///terminator or twilight zone;