Grain is pouring into a silo to be stored for later use. due to the friction between pieces of grain as they rub against each other during the pouring process, one piece of grain picks up a charge of 6.0 e -10 c and another piece of grain picks up a charge of 2.3 e -15 c. what is the electric force between them if the pieces of grain are 2 cm apart?
remember to identify all data (givens and unknowns), list equations used, show all your work, and include units and the proper number of significant digits to receive full credit.

the ima (higher than 1m) will be greater than the ima with the height of 1m.

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.