A2-kg object is initially at the bottom of a long 50° inclined plane, and is beginning to slide up this inclined plane. the initial velocity of the object os 3.0 m/s. the coefficient of kinetic friction between the object and the surface of the inclined plane is µk = 0.3, while the coefficient of static friction is µs = 0.4. will the object ever slide back down to the initial position? if yes, what will be its speed once it slides back down to the bottom? if no, how high up the incline will it manage to climb?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

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.