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A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the piston. What is the ratio of the radius of the plunger to the radius of the piston?
What are the final temperatures of water and the aluminum.
A steel piano wire vibrates in its first harmonic mode with a fundamental frequency of f1 = 410 [Hz]. How many harmonics can be heard by a person
A person exerts a force of 68N on the end of a door 75cm wide. What is the magnitude of the torque if the force is exerted perpendicular to the door
A computer to be used in a satellite must be able to withstand accelerations of up to 27 times the acceleration due to gravity. What is the minimum amplitude of vibration
A student of weight 665 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force N on the student from seat is 566 N.
a compressor operates at steady state with air entering at 1 bar 20 deg celsius and exiting at 5 bar. a if the air
Two vehicles approach a right angle intersection and then collide. After the collision, they become entangled. If their mass ratios were 1:3 and their respective speeds as they approached were both 13 m/s, find the magnitude and direction of the fina..
Illustrate what was the impact on Mosby's 2012 net income as a result of this fair value hedge of a firm commitment?
An 83.6-mH inductor and a 6.22-µF capacitor are connected in series with agenerator whose frequency is 355 Hz. Therms voltage across the capacitor is 2.36V. Determine the rms voltage across the inductor.
A 150 g ball on a 60-{\rm cm}-long string is swung in a vertical circle about a point 200 {\rm cm} above the floor. The tension in the string when the ball is at the very bottom of the circle is 4.0 N.
What are the errors in the energy transformation using electrically heated calorimeter experiment (energy transfer between electrical and heat energy) ? ( container was closed and there was an outer covering to the metal to prevent heat loss)
A 70 ball of clay traveling at speed hits and sticks to a 1.2 kg block sitting at rest on a frictionless surface. What is the speed of the block after the collision
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