Athin, square metal plate measures 15 cm on each side and has emissivity of 0.80. the plate is heated to a temperature of 605°c. what is the rate at which the plate radiates energy? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ∙ k4). remember that the plate will radiate energy from both its top and bottom surfaces. 1.2 kw 2.1 kw 980 w 900 w

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus