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Question: Flow to the motor, and subsequently the output speed, does influence torque output for some motor designs. Data shown in Table give the output torque from a "family" of motors as flow to the motor increases from 1 to 20 GPM. (A family of motors is a group of motors with the same design, but the size of the components have been increased to give a range of displacements.) Pressure drop across the motors was maintained constant at ?P = 1000 psi for all tests. Plot the torque efficiency vs. input flow for the four smaller motors (4.9 to 9.6 in3/rev) on one plot and the four larger motors (11.9 to 24.0 in3/rev) on a second plot. Discuss your results.
An engineer wishes to determine the specific heat of a new metal alloy. A 0.150-kg sample of the alloy is heated to 540°C. Calculate the specific heat of the alloy
What is the mass of the CORE of the Sun?
A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop?
A machine part consists of a thin 44.9-cm-long bar with small 1.96-kg masses fastened by screws to its ends. The screws can support a maximum force of 75.1N.
A convex spherical mirror has a radius of curvature of 10.6cm. Calculate the size of the image
A fireman, 25.6 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 39.5° above the horizontal
The current through RL in given Figure is 100 mA. Use source transformations to find RL. Validate your answer using Multisim.
In a sample of Ar gas at 24 oC and 5.00 bar, calculate the number of collisions per second for a given atom. The diameter of an atom of Ar is 194 pm.
In your opinion -- can one move from one group to the next? Said differently, can someone in your "secondary" group work his/her way up to your "primary" group -- this individual is not related to you, but would it be possible? How about the other wa..
Suppose that an insulating container of negligible mass contains 0.12 kg of water at a temperature of 4 degrees C. what is the final mass (in kg) of the water in the system
Consider a current loop immersed in a magnetic field, as in Figure 22-34(a). It is given that B = 0.27 T and I = 9.5 A. In addition, the loop is a square 0.51 m on a side. Find the magnitude of the magnetic force exerted on each side of the loop.
A small button placed on a horizontal rotating platform with diameter 0.310m will revolve with the platform, How far from the axis can the button be placed, without slipping, if the platform rotates at 59.0rev/min
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