A positive force on the balance indicates a downward force on the silver sphere while a negative force on the balance indicates an upward force on the silver sphere. With that in mind, do the two spheres have like charges or opposite charges? Give your answer as a CER.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

You can decrease the resistance of a length of wire by