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A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe's diameter is 56.1 cm and the flow speed of the petroleum is 13.1 m/s. At the refinery the petroleum flows at 6.09 m/s. What is the volume flow rate of the petroleum along the pipe and what is the pipe's diameter at the refinery?
Volume flow rate: ________m^3/s
Diameter: _______________cm
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
A 79 kg person sits on a 3.7 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter. Find out the pressure exerted on the floor by each leg of the chair, suppose the weight is evenly distributed.
You have a parallel-plate ideal capacitor with a capacitance of 23mF that you connect to a 4V battery until it is fully charged. What is the diameter of the solenoid
A mass of 0.4 kg, hanging from a spring with a spring constant of 80 N/m, is set into an up-and-down simple harmonic motion. What is the potential energy stored in the spring
A small box of mass m1 is sitting on a board of mass m2 and length L . The board rests on a frictionless horizontal surface
When light of wavelength 380 nm falls on a cesium surface,electrons are emitted that have a maximum kinetic energy of 1.13eV. Find the work function of cesium
In a television set the power needed to operate the picture tube comes from the secondary of a transformer. Find the turns ratio Ns/Np of the transformer
When a mass of 7.15 kg is attached to the spring, the spring stretches by 0.0105 m. Calculate the kinetic energy the mass possesses
If the skier is moving at 13 m/s at the bottom of the trail, calculate the total work done by friction and air resistance during the run
A transformer is to be used to provide power for a computer disk drive that needs 5.0 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
A horizontal plank of mass m and length L is pivoted at one end. The plank's other end is supported by a spring of force constant k. The moment of inertia of the plank about the pivot is .
What's the advantage of launching space vehicles from high flying aircraft in place of from the ground.
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