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Each of the space shuttle's main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate at 469 rev/s. A point on one of the blades traces out a circle with a radius of 0.639 m as the blade rotates. What is the magnitude of the centripetal acceleration that the blade must sustain at this point?
A 2.5kg cannonball is fired from the top of a cliff. The cannonball leaves the cannon at a height of h=75 m above the ground below. what is the speed of the cannonball just before it hits the ground
Force F = (3.0 N) + (-9.0 N) acts on a pebble with position vector r = (1.00 m) + (-1.6 m) , relative to the origin. What is the resulting torque acting on the pebble
A nuclear power plant generates 3000 MW of energy from nuclear reactions in reactor%u2019s core. What is the maximum thermal efficiency of the power plant
Two sound sources of 785.0Hz and 783.4Hz with the same intensity are played together. What do you hear and how frequently
Assume a planet is a uniform sphere of radius R that (somehow) has a narrow radial tunnel through its center. Also assume we can position an apple anywhere along the tunnel or outside the sphere.
A spring has a force constant of 323 N/m and an unstretched length of 6 cm. One end is attached to a post that is free to rotate in the center of a smooth table, as shown in the top view below. The other end is attached to a 4-kg disk moving in un..
Consider an ideal gas at 27.0 degrees Celsius and 1.00 atmosphere pressure. What is the length of an edge of each small cube if adjacent cubes touch but don't overlap
question1a space platform in form of a thin circular disc of radius a and mass m flying saucer is initially rotating
A small electric car overcomes a 244N friction force when traveling 29.6km/hr. The electric motor is powered by ten 12.0V batteries connected in series and is coupled directly to the wheels whose diameters are 49.0cm. The 281 armature coils are re..
Starting from rest, a 12-cm-diameter compact disk takes 2.6s to reach its operating angular velocity of 1600rpm. How much torque is applied to the disk
Water is flowing at 100 lbm / s in a circular drain pipe of 1 m in diameter. This 1 meter diameter pipe comes to an abrupt constriction when the diameter suddenly reduces to 1.5 feet, Find the velocity of the water in both pipes
A very long solenoid of circular cross section with radius R = 5.30 cm has n = 69.0 turns/cm. An electron is sitting just outside the solenoid, at a distance r = 5.80 cm from the solenoid axis. What is the magnitude of the force on the electron as..
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