A block of dimensions 5m by 4m by 6m has a mass of 10kgs .what is it's density

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

What type of light does this light bulb produce most (i. e. at what wavelength does the spectrum have maximum intensity)?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above