An automobile moves at constant speed over the crest of a hill the driver moves in a vertical circle of radius 18m at the top of the hill she notes that she barely remains in contact with the seat find speed of the vehicle

Explain why electric current cannot exist if a current doesn't have a voltage source.

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.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader