Engineering, 14.12.2019 05:31 dannyhouseman55
What thickness of lead will allow only one γ in 106 to penetrate (use equation rx=r0e−nσx where r0 is the rate at wich incident particles strike the front of the target, and rx is the rate at a distance x into the target. rx=r0 at x=0)? express your answer to two significant figures and include the appropriate units.
Answers: 3
Engineering, 04.07.2019 16:10
The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.
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Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
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Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
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Engineering, 04.07.2019 18:20
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
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What thickness of lead will allow only one γ in 106 to penetrate (use equation rx=r0e−nσx where r0 i...
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