Homework Statement
A fire hose discharges water at a rate of 16.0 kg/s with a speed of 20 m/s. What magnitude of force is needed to hold the nozzle stationary?
Homework Equations
Impulse= Change in Momentum, Momentum (p)= mv, velocity final=velocity inital + at
The Attempt at a...
Homework Statement
How high above the surface of the Earth must a mass be located so its gravitational potential energy is only 17.00% of its value on the surface?
Homework Equations
PEg=(-GMm)/r, PElocal= mgy where y is height the object can fall
The Attempt at a Solution...