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jeyben [28]
2 years ago
5

a _______ wave is a mechanical wave in which particles of the medium vibrate in a direction that is parallel to the direction in

which the waves travel
Physics
2 answers:
Helga [31]2 years ago
6 0
The answer is Longitudinal
spayn [35]2 years ago
3 0

sound waves!

sound waves are always mechanical and they vibrate!

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Read 2 more answers
A block-and-tackle pulley hoist is suspended in a warehouse by ropes of lengths 2 m and 3 m. the hoist weighs 430 n. the ropes,
ICE Princess25 [194]
Refer to the diagram shown below.

For horizontal equilibrium,
T₃ cos38 = T₂ cos 50
0.788 T₃ = 0.6428 T₂
T₃ = 0.8157 T₂                (1)

For vertical equilibrium,
T₂ sin 50 + T₃ sin 38 = 430
0.766 T₂ + 0.6157 T₃ = 430
1.2441 T₂ + T₃ = 698.392        (2)

Substitute (1) into (2).
(1.2441 + 0.8157) T₂ = 698.392
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Answer:
T₂ = 339.06 N
T₃ = 276.57 N

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3 years ago
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