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Tomtit [17]
3 years ago
11

An unstretched spring has a length of 0.30 m. When the spring is stretched to a total length of 0.60 m, it supports traveling wa

ves moving at 4.5 m/s. How fast will waves travel on this spring if it is stretched to 0.90 m?

Physics
1 answer:
IceJOKER [234]3 years ago
7 0

Explanation:

Below is an attachment containing the solution

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forsale [732]

Answer:

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URGENT!!
irinina [24]

Answer:

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3 0
3 years ago
A projectile is launched upward at an angle of 70⁰ from the horizontal and strikes the ground a certain distance down range. For
OLga [1]

Answer:20°

Explanation:

Recall

Range R of a projectile is given by U^2sin2A/g

We're U = velocity,A= angle of projection and g is acceleration due to gravity

From the question the range R are the same

Hence R1=R2

U1^2sin2A/g=U2^2sin2B/g

But U1=U2 and g=g

Hence sin2A=sin 2B

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0.6427=sin2B

B=sin inverse(0.6427)=40/2=20°

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devlian [24]

Answer:

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3 years ago
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