Engineering, 14.04.2020 17:59 jesusdelao
2 The motion of an oscillating flywheel is defined by the relation θ = θ0e–3πt cos 4πt, where θ is expressed in radians and t in seconds. Knowing that θ0 = 0.5 rad, determine the angular coordinate, the angular velocity, and the angular acceleration of the flywheel when (a) t = 0, (b) t = 0.125 s
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Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
Answers: 2
Engineering, 04.07.2019 18:10
The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m
Answers: 2
2 The motion of an oscillating flywheel is defined by the relation θ = θ0e–3πt cos 4πt, where θ is e...
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