The nuclear power used for electricity is produced by a. fusion
c. a chemical reaction.
b. fission.
d. radon gas.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.