PLEASE HELP!! Darby has a very high-energy dog named Lily. Lily's parents were both very energetic dogs. Darby trains Lily to chase a tennis ball when she
throws it and to bring it back. Lily can play fetch for hours and is always ready for a game.
How has Lily's behavior been influenced by her heredity?
OA. Lily inherited her identification of the tennis ball from her parents.
OB. Lily inherited her high energy level from her parents.
OC. Lily inherited her knowledge of fetch from her parents.
OD. Lily inherited her relationship with Darby from her parents.

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present