a small sphere of mass .2 g hangs by a thread between 2 parallel vertical plate 5 cm apart. the charge on the sphere is 6x10^-9 C. what is the potential difference between the plates if the thread assume an angle of 10 with the vertical

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Select the correct answer. what does the process of natural selection involve?

Which best describes the difference between internal and thermal energy?