Need help, please. :) Explain why it is difficult to develop devices for human use that rely on waves found higher in the electromagnetic spectrum, such as gamma waves?

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

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