Physics, 13.12.2019 05:31 Richelleypinelley
6a certain load and set of slings create a 20-degree angle between the load and each sling leg. using a spreader for the same lift would result in a 60-degree angle between the load and each sling leg. what is the reduction (in percent) in sling stress and in the horizontal reaction when the spreader is used?
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Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
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The horizontal blue line through the middle of the lens is called the optical axis. as the lamp is moved above or below the axis, keeping the horizontal distance to the center of the lens constant, how does the horizontal distance from the lens to the image change?
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6a certain load and set of slings create a 20-degree angle between the load and each sling leg. usin...
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