The densities of graphite and diamond at 298K are 2.25 and 3.31gcm^-3 respectively. If the standard free energy difference is equal to 1895Jmol^-1, the pressure at which graphite will be transformed into diamond at 298K is
a. 9.92 * 10^7 Pa b. 9.92*10^6 Pa c. 9.92 * 10^5 Pa d. 9.9*10^8 pa

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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