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Ray Of Light [21]
2 years ago
15

What energy transfer will a stretched rubber band have.

Physics
1 answer:
polet [3.4K]2 years ago
7 0

Answer:

C

Explanation:

Kinetic energy is energy in an object because of its motion. For example, a rubber band that is stretched has elastic potential energy, because when released, the rubber band will spring back toward its resting state, transferring the potential energy to kinetic energy in the process. When a spring is coiled up or a rubber band is stretched, mechanical energy is stored in it. When the spring uncoils or the rubber band snaps back, this energy is released. This stored mechanical energy is called potential energy because it has the potential to make things happen.

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A wave travels a distance of 60cm in 3s. The distance blw successive crests of thd wave is 4cm. What is the frequency?
schepotkina [342]
Data:
ΔS = 60cm
Δt = 3s
Vm = ?

Vm = ΔS/Δt 
Vm =  \frac{60}{3}
Vm = 20cm/s

We have:

Vm = v
ΔS = λ
Δt = T

v =  \frac{\lambda}{T}
20 = \frac{\lambda}{4}
\lambda = 20*4
\lambda = 80cm

Soon:

v = \lambda*f
20 = 80*f
80f = 20
f =  \frac{20}{80} simplify( \frac{\div20}{\div20} )= \frac{1}{4}
\boxed{f = 0,25Hz}


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2 years ago
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3 years ago
23 and 24 only please help!
Lilit [14]

Answer:

23: Acceleration 24:1m/s^2

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7 0
2 years ago
What time of the day do you feel the most Energetic and what do you usually do in those moments?​
iren2701 [21]

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Damm [24]

Answer

given,                                                

Tension of string is F                                                  

velocity is increased and the radius is not changed.      

the string makes two complete revolutions every second

consider the centrifugal force acting on the stone          

  = \dfrac{mv^2}{r}                          

now centrifugal force is balanced by tension

T =\dfrac{mv^2}{r}                                

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When radius is not changing velocity is increasing means tension will also increase in the string.

8 0
3 years ago
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