explain or no rate a load weighing 160 N is hung 3. 0 m from one end of an 8. 0
ID: 2123324 • Letter: E
Question
explain or no rate
a load weighing 160 N is hung 3. 0 m from one end of an 8. 0 m horizontal pole which weighs 80 N Two men carry the pole, one at each end. Find the forces which the men exert on the pole Each exerts 80 N upward. I exerts 60 N upward, II exerts 100 N upward. I exerts 140 N upward, II exerts 100 N upward. I exerts 100 N upward, II exerts 140 N upward. Each exerts 120 N upward. I exerts 80 N upward, II exerts 160 N upward. an audio oscillator is adjusted to provide an output wave with a period of 0. 625 ms. a second audio oscillator produces an output wave with a period of 0. 770 ms. In the region where these two waves overlap, beats are detected. What is the beat frequency? 150 Hz 300 Hz 600 Hz 64. 5 Hz 6900 Hz Not close to the aboveExplanation / Answer
let force of two people be F1 and F2
F1+F2 = 160+80 =240
rotational equilibrium
F1*4 =-160*1+F2*4
F1-F2 =-40
2F1 =200
F1=100
F2 = 140
option D
2.
fbeat =|f1-f2| where f1=1/T1 f2=1/T2
(1/0.625 -1/0.77 )*10^3 =300Hz
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.