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A pipe is horizontal and carries oil that has a viscosity of 0.15 Pa · s. The volume flow rate of the oil is 4.6 10-5 m3/s. The length of the pipe is 45 m, and its radius is 0.64 cm. At the output end of the pipe the pressure is atmospheric pressure. What is the absolute pressure at the input end? (Assume atmospheric pressure is 1.013 105 Pa.)
Pa
A resistor is made out of a long wire having a length . Each end of the wire is attached to a terminal of a battery having a constant voltage Vo. what would be the total current flowing through the two wires
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
Two long straight parallel wires are 19cm apart. Wire A carries 2.0-A current. Wire B's current is5.0A in the same direction, Determine the force per unit length on wire B due to wire A
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
An object of mass 12.0 kg and traveling 10.0 m/s to the right collides with a second object of mass 24.0 kg traveling 13.0 m/s to the left. how much energy went into heat and sound
A person pulls a toboggan for a distance of 30-m along the snow with a rope directed 25.0° above the snow. The tension in the rope is 98-N.
A spring is hanging from the ceiling. Attaching a 480 g mass to the spring causes it to stretch 21.0 cm in order to come to equilibrium. a. What is the spring constant? b. From equilibrium, the mass is pulled down 10 cm and released.
A 113 gram apple falls from a branch that is 2.5 meters above the ground. Just before the impact, what is the speed of the apple
A barge is 15.0 m wide and 75.0 m long and has vertical sides. The bottom of the hull is 1.20 m below the water surface. What is the weight of the barge
A wave has an angular frequency of 110 rad/s, Calculate the angular wave number and the speed of the wave
Two points are given in polar coordinates by (r,?) = (3.0 m , 35.0°) and (r,?) = (4.0 m, -35.0°), respectively. What is the distance between them
A cannon shoots a rock from the ground at an angle of 31.0° above the horizontal. What is the rock's speed in the horizontal direction just before it hits the ground
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