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allochka39001 [22]
3 years ago
12

How would the amount of potential energy stored in the bungee cord compare to

Physics
1 answer:
Musya8 [376]3 years ago
3 0

If the spring constant of the bungee rope is greater than that of a rubber band, it will have more elastic potential energy. However, if the spring constant of the rubber band is greater than that of the bungee rope, the rubber band will have more elastic potential energy.

<h3>Elastic Potential energy </h3>

Elastic Potential energy is the stored in a elastic string which has been compressed or stretched.

The formula for calculating elastic potential energy is given as:

  • Elastic Potential = 1/2 Kx^2

where

  • K is the spring constant of elastic material
  • x is the distance if compression or stretch

The elastic potential of an elastic material depends on the spring constant and the distance stretched or compressed.

Since the bungee rope and the rubber band are stretched the same distance, their elastic potential energy depends on their spring constant.

Therefore, if spring constant of the bungee rope is greater than that of a rubber band, it will have more elastic potential energy. However, if the spring constant of the rubber band is greater than that of the bungee rope, the rubber band will have more elastic potential energy.

Learn more about elastic potential energy at: brainly.com/question/1075827

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the explorer visited the three places and raised her hand when she reached each of them, where would the change in gravitational
Scorpion4ik [409]

Answer:

the Mariana trench

Explanation:

To perform this calculation we must use the law of universal gravitation

          F = G m M / r²

Where the gravitational potential energy is immediately deducted

         U = ∫ F dr

         U = - G m M (1 / r - 1 / Ro)

In general the point of Ro is taken at infinity so that here the energy is zero

Therefore, for this problem we will use the equation

           U = - G m M / r

Let's calculate the distance, for the three requested points

-Ecuador

         R = 6370 km (1000 m / 1 km)

         R = 6.370 10 6 m

- Mariana Trench

This is 11 km deep

        R = 6370 -11 km = 6359 km

        R = 6.359 106 m

- The Chimborazo

      R = 6384 Km

      R = 6.384 10 6 m

We can appreciate that if we introduce these values ​​in the formula, the one that gives the greatest change would be the one with the least distance. Let's calculate it,

 

- Ecuator

      U = - (G mM) / (6.370 106)

      U = - (GmM) 1.5699 10-7 J

- mariana trench

      U = - (GmM) 1 / 6,359 106

      U = - (GmM) 1.5725 10-7 J

- Chimborazo

      U = - (GmM) 1 / 6,384 106

      U = - (GmM) 1.5664 10 -7 J

Here we can see that the greatest value is that of the Mariana trench

3 0
3 years ago
Read 2 more answers
Suppose, the same angular momentum is transferred to two rotating bodies of different moment of inertia , how will you compare t
Sonbull [250]

Answer:

As per the law of conservation of angular momentum, the angular velocity will be higher for the body with a lower moment of inertia and vice versa.

Explanation:

Angular momentum L of a body is given by:

L=I\times \omega

Now when the same angular momentum is transferred to two different bodies with different moment of inertia, the body with a higher moment of inertia will have lower angular velocity and vice versa.

4 0
3 years ago
a dad expends 200 joules of work pushing a stroller up a hill. he produces 125 j of work. how efficient is he being?
AVprozaik [17]
Not efficient enough
7 0
2 years ago
Which describes a train’s acceleration if it changes speed from 25 m/s to 10 m/s in 240 s? positive acceleration no acceleration
OLEGan [10]

To understand acceleration, you need to know speed and velocity.

Why?

Acceleration is the change in velocity, and the velocity equation is:

velocity = distance / time     Units: (m/s)

If a change in position means an object has a velocity, then that means that a change in velocity has an acceleration (I recommend you look at the graphs, it will help a lot to understand the relationship between each).

Now that we have some background, lets use it to answer the problem!

The change in velocity is from 25 m/s to 10 m/s, and we have a time. Lets plug it into the (average) acceleration equation so we can visualize it better!

The symbol delta means "change" : Δ

a = Δv / Δt

expanded to:

a = vf - vi / tf - ti  

(vf = velocity final, vi = velocity initial, tf = time final, ti = time initial)

So if the train's speed went from 25 m/s to 10 m/s, then that means that 10 m/s is our final velocity and 25 m/s is the initial:

a = 10 - 25 / 240

a = -15 / 240

a = -0.0625 m/s^2

Since we ended up with a negative number, it means that the train has a negative acceleration!!!!!

The fast way to do this:

25 m/s is bigger than 10 m/s, so that means that to go from 25 m/s to 10 m/s you have to slow down--otherwise known as putting on your brakes. So if the change in speed is negative then the acceleration will be negative.

In other words, if your final speed is less than your initial speed then your acceleration would be negative.

Sorry for the long explanation! I hope you never struggle with this again though!

Hope it helped,

3 0
3 years ago
A rectangular block has the density of 350g/cm3 the dimensions are 3.5 6.cm 2.5
LekaFEV [45]

Answer:

18375g

Explanation:

\boxed{density =  \frac{mass}{volume} }

∴ mass = density \times volume

Let's find the volume of the rectangular block.

Volume

= length ×breadth ×height

= 3.5 ×6 ×2.5

= 52.5cm³

Mass of the block

= 350(52.5)

= 18375g

7 0
3 years ago
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