A 3 -kg book slides horizontally and falls from a shelf 2.0 m above the floor. How much work does the force of gravity do on the book as it falls 2.0 m? (Use 10m/s/s as the acceleration due to gravity). a 6 J
b 50 J
c 60 J
d 9.8 J

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.