Which of the following statements about nuclear power is true? a. nuclear power plants are cheap to build, but expensive to operate. b. nuclear power plants are more expensive to operate than fossil fuel power plants. c. nuclear power plants can cause thermal pollution in nearby lakes. d. nuclear power plants emit carbon dioxide, sulfur dioxide, and nitrogen oxides which pollute the air.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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.

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.