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Magnetic particle clutches are useful actuator devices for high power requirements because they can typically provide a 200-W mechanical power output. The particle clutches provide a high torque-to-inertia ratio and fast time-constant response. A particle clutch positioning system for nuclear reactor rods is shown in Figure P10.4. The motor drives two counter-rotating clutch housings.
The clutch housings are geared through parallel gear trains, and the direction of the servo output is dependent on the clutch that is energized. The time constant of a 200-W clutch is T = 1/40 s. The constants are such that KTn/J - 1. We want the maximum overshoot for a step input to be in the range of 10% to 20%. Design a compensating network so that the system is adequately stabilized. The settling time (with a 2% criterion) of the system should be less than or equal to 2 seconds.
Suppose we have a population of scores with a mean = 200 and a standard deviation = 10. Assume that the distribution is normal. Provide answers to the following questions:
lets say a publisher makes one typo per 1000 pages. without using the formula or calculating any numerical answers
The sample mean is 4.1 and the sample standard deviation is 1.4. It can be assumed that the population is normally distributed. The degrees of freedom associated with this are?
question find the probability that in 200 tosses of a fair die we will obtain at least 40
ten voters are randomly selected and asked if they will vote for the incumbent president. five said yes and three said
A nationwide standardized test taken by high school juniors and seniors may or may not measure academic potential, but we can nonetheless examine the relationship bewteen scores on such test and performance in college.
astudy of 31000 hospital admissions in new york state found that 4 of the admissions led to treatment-caused injuries.
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
a consumer watchdog organization is concerned about credit card debt. a survey of 10 young adults with credit card debt
Eight randomly selected plants have heights 172, 156, 154, 163, 170, 169, 170 and 164 cms. Test whether the sample standard deviation differs significantly?
11 women and 9 men are the contestant in a competition. If 3 winners are ramdomly selected. what is the probability that they are all men?
find the indicated iq score. the graph depicts iq scores of adults and those scores are normally distributed witha mean
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