Heat is transferred to an elastic sphere containing gas at 97.45kPa. The diameter of the sphere is 2 m. Because of heating the sphere, the diameter increases to 2.2m and the gas pressure increases in direct proportion to the sphere diameter. Find the work of the gas during the heating process.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_

Could we see a galaxy that is 20 billion light-years away?