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The suction pipe of a pump rises from a sump at a slope of 1 in 5 and water passes through at 1.8 m/s. If dissolved air is released when the pressure falls to more than 70 kN/m2 below atmospheric pressure, find the greatest practicable length of pipe neglecting friction. Assume that the water in the sump is at rest and the water level is 10 m from the base. Assume the density of water to be 1000 kg/m3.
What is the force of gravity between two 1000-kg cars separated by a distance of 25m on a interstate
A 60 kg skier is in a tuck and moving straight down a 30 degree slope. What is the resultant of the external forces that act on the skier
The density of ice is 917 kg/m3, and the density of seawater is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 4.97 m3. What is the weight of the heaviest bear that the ice can support without sinking compl..
If you hold a 900cm2 square plane mirror 43cm from your eyes and can just see the full length of an 7.7m flagpole behind you, how far are you from the pole
A 10 kg box slides 4.0 m down a frictionless ramp and collideswith a spring as shown in the figure. The spring constant is 250N/m. At what compression of the spring does the box have its maximum speed?
The longest recorded pass in an NFL game traveled 84 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speed at which the ball left the quarterbacks hand?
a person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 16.0 m. she pushes in a direction
How do you find the period of a binary star system?
how much kinetic energy does each electron have. Blocks of mass m_1 and m_2 are connected by a massless string that passes over the pulley.
A 10000 kg empty railroad car moving at 3 m/s collides with a loaded railroad car weighing 196000 N and couples with it. What is the final velocity of the combined railroad cars
In a lightning bolt, a large amount of charge flows during a time of 2.6 x 10-3 s. How much charged has flowed during the lightning bolt
Parachutist A parachutist weighing 80 kg, including the parachute, falls with the parachute open at a constant 8.5-m/s speed toward Earth.The drag coefficient Cd = 0.05.
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