Arace car starts at a line on a one mile oval racetrack. it goes around 100 times in 2
hours and ends up at the finish line, which is the same line as the starting line.
what is the car's velocity, in miles per hour?
0 mph
25 mph
50 mph
200 mph

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c

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.