The grounded conductor of a branch circuit is permitted to serve as the equipment grounding conductor for a replacement electric dryer when all the following conditions are met, except for

a. the grounded conductor is insulated, unless it is part of type se cable
b. the branch circuit is protected by time-delay fuses
c. the grounded conductor is not smaller than 10 awg copper or 8 awg aluminum
d. the individual branch circuit is existing

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .