A spring has a natural length of 4m. It requires 343J of work to stretch the spring to 11m. Calculate the work required to stretch the spring from 10m to 11m. Round your answer to the nearest hundredth if necessary.

The four giant gas points that are made primarily of lightweight elements are

What are similarities and differences of reflection, refraction, diffraction and absorption?

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.