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34kurt
3 years ago
8

Which is not a medium through which a mechanical wave could travel?

Physics
2 answers:
Setler [38]3 years ago
8 0

Mechanical Wave cannot travel in space vaccumes, which would be considered "Empty Space" in your situation.

Tems11 [23]3 years ago
8 0

A mechanical cannot travel through empty space. So option (d) is correct.

A mechanical wave is a wave which needs a material medium for its propagation. For example sound, water waves etc . The medium required by the wave can be a solid, liquid or a gas. Empty space doesn't have any medium, so a mechanical wave cannot travel through empty space.

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A short-wave radio antenna is supported by two guy wires, 155 ft and 175 ft long. Each wire is attached to the top of the antenn
Vladimir79 [104]

Answer:

163.8 ft

Explanation:

In triangle ABD

AB = 155 ft

Cos63 = \frac{BD}{AB} = \frac{BD}{155}\\BD = 155 Cos63 \\BD = 70.4 ft

Sin63 = \frac{AD}{AB} = \frac{AD}{155} \\AD = 166 Sin63\\AD = 148 ft

Using Pythagorean theorem in triangle ADC

AC^{2} = AD^{2} + DC^{2} \\175^{2} = 148^{2} + DC^{2} \\DC = 93.4 ft

d = distance between the anchor points

distance between the anchor points is given as

d = BD + CD = 70.4 + 93.4\\d = 163.8 ft

5 0
3 years ago
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zepelin [54]
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8 0
2 years ago
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Use each of the following terms in a separate sentence: tissue<br> organ,and function
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3 0
3 years ago
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murzikaleks [220]

Answer:

226.2 m/sec

Explanation:

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2 years ago
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