Calculate the distance x between charges q1 and q2 shown, given the repulsive force between them as 1.2 x 10-4 N, take the permittivity of vacuum where they were as 8.842x 10 12 F/M and charge on q1= 1.6x10-19c (a) 1.96x10-12M (b) 9.1x104N (c) 16.8x10-4 N. (d) 4.3x108 N​

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)

Elements on the periodic table are ordered according to their

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy