What power must a motor have to perform the task
A skier of mass 68 kg is pulled up a slope by a motor-driven cable.
(a) How much work is required to pull him 45 m up a 30° slope (assumed frictionless) at a constant speed of .3.5m/s?(b) What power must a motor have to perform this task?
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A solenoid is wound with N=471 turns on a form D=3.4 cm in diameter and L=82 cm long. The windings carry a current in the sense that is shown. The current produces a magnetic field, of magnitude 7.4 mT, at the center of the solenoid. What is the
Calcium levels in Mr. Gallariani's blood are dropping to dangerously low levels . The hormone PTH is released and soon blood calcium levels being to rise. Shortly after, PTH release slows. Is this an example of a positive or negative feedback mechani
In order to be accepted a student must score within the top 5%. Given that the test has a mean of 1000 and a standard deviation of 200 what is the lowest possible score needed for acceptance?
IN words show the operation of a sodium and potassium pump.
How much work is required to pull him 45 m up a 30° slope (assumed frictionless) at a constant speed of .3.5m/s? What power must a motor have to perform this task?
The concept of a communications management plan makes logical sense, yet many projects do not create or follow this type of plan. Why do you think this is the case?
1. Under what conditions should you use the McNemar test? 2. What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.
Compare and contrast natural versus anthropogenic climate changes. Include specific examples of each. Take a position as to whether or not global warming is taking place. Provide three (3) lines of evidence to support your position.
Upward with a force of 490 N, and downward with a force of 228 N. What is the direction of the net external force on the crate (measured CCW from right, the positive x axis)?
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