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Usimov [2.4K]
2 years ago
8

50pts: Fill this out.

Physics
2 answers:
Vikentia [17]2 years ago
6 0

the person who answered before me is correct

Bogdan [553]2 years ago
4 0

Push is in, pull is out

----------------------------------------------------------------------------------------------------

Contact Forces  

Frictional Force  

Tension Force  

Normal Force  

Air Resistance Force  

Applied Force

----------------------------------------------------------------------------------------------------

Action-at-a-Distance Forces  

Gravitational Force  

Electrical Force  

Magnetic forces

----------------------------------------------------------------------------------------------------

Very bottom, last part

First drawing: Arrow down above box

Second drawing: Arrow up from below box    

 


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What is the length a rubberband was stretched if it has a spring constant of 5700N/m and is currently holding 8600J OF POTENTIAL
lozanna [386]

Answer:

\displaystyle \Delta x=1.74\ m

Explanation:

<u>Elastic Potential Energy </u>

Is the energy stored in an elastic material like a spring of constant k, in which case the energy is proportional to the square of the change of length Δx and the constant k.

\displaystyle PE = \frac{1}{2}k(\Delta x)^2

Given a rubber band of a spring constant of k=5700 N/m that is holding potential energy of PE=8600 J, it's required to find the change of length under these conditions.

Solving for Δx:

\displaystyle \Delta x=\swrt{\frac{2PE}{k}}

Substituting:

\displaystyle \Delta x=\sqrt{\frac{2*8600}{5700}}

Calculating:

\displaystyle \Delta x=\sqrt{3.0175}

\boxed{\displaystyle \Delta x=1.74\ m}

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In an arcade game, a 0.126 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and relea
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4.156 m/s

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See attachment

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