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Mice21 [21]
3 years ago
10

Which quote best reveals why sowers was successful in achieving her goal?

Physics
1 answer:
BabaBlast [244]3 years ago
5 0
Sowers has spent her career fighting for gender equality and it passionate about it .
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A stretched rubber band has ___________ energy. a. elastic kinetic energy b. gravitational potential energy c. elastic potential
densk [106]

Answer: Option (c) is the correct answer.

Explanation:

An elastic object is defined as the object that is able to retain its shape when a force is applied on it.

For example, when we pull a rubber band then it stretches and when we withdraw the force applied on it then it retain its shape.

As we know that potential energy is the energy obtained by an object due to its position.

So, when we stretch a rubber band then it will have elastic potential energy as position of the rubber band is changing and since, it will retain it shape hence it has elastic potential energy.

Thus, we can conclude that a stretched rubber band has elastic potential energy.

3 0
4 years ago
A small block has constant acceleration as it slides down a frictionless incline. The block is released from rest at the top of
Natasha2012 [34]

Answer:

   h ’= 0.51356 m

Explanation:

For this exercise we can use conservation of energy

starting point. Highest point of the trajectory

         Em₀ = m g h

         sin θ = h / L

         h = L sin θ

         Em₀ = m g L sin  θ

final point. Lowest point of the trajectory

         Em_f = K = ½ mv²

as there is no friction, energy is conserved

        Em₀ = Emf

        m g L sin  θ  = ½ m v²

        sin  θ  = ½ v² / gL

        sin  θ  = ½ 3.80² / (9.8  6.60)

        sin  θ  = 0.111626

         tea = 6.41

They ask us for the speed for L ’= 4.60 m

let's find the height

         sin 6.41 = h '/ L'

           

h ’= L’ sin 6.41

         h ’= 4.60 sin 6.41

         h ’= 0.51356 m

we use conservation of energy

          m g h ’= ½ m v’2

          v ’= √ (2gh’)

          v ’= √ (2 9.8 0.51356)

          v ’= 3.173 m /s²

6 0
3 years ago
What is the wave length if the distance from the central bright region to the sixth dark fringe is 1.9 cm . Answer in units of n
Yuri [45]

Complete Question

The complete question is shown on the first uploaded image  

Answer:

The  wavelength is  \lambda  =  622 nm

Explanation:

  From the question we are told that

    The distance of the slit to the screen is  D  = 5 \ m

    The order of the fringe is m  =  6

     The distance between the slit is  d = 0.9 \ mm  =  0.9 *10^{-3} \ m

    The fringe distance is  Y =  1.9 \ cm  =  0.019 \ m

Generally the for a dark fringe the fringe distance is  mathematically represented as

        Y  = \frac{[2m  - 1 ] *  \lambda *  D  }{2d}

=>     \lambda  =  \frac{Y *  2 *  d }{[2*m  -  1] *  D}

substituting values

=>      \lambda  =  \frac{0.019 *  2 *  0.9*10^{-3} }{[2*6  -  1] *  5}

=>     \lambda  =  6.22 *10^{-7} \ m

       \lambda  =  622 nm

8 0
3 years ago
An example of objects the move in revolution
Andrei [34K]

An example of objects that move in revolution is a ball on a string end or a planet that is moving around a star.

<u>Explanation:</u>

Rotation is the movement of an object in circular path. When the rotation's axis does not pass through the object, it is revolution. The axis of rotation may also be out of the object completely. This results in making the object to revolve around the rotation's axis.   An object going in an elliptical path is revolution.It is the total time taken to complete one orbit.

Some of the examples for an object revolving are the following:

  1. A ball on the string end.
  2. A planet that revolves around a star. An orbit is a term that is used to describe this type of motion.

8 0
3 years ago
What is the correct measure of an astronomical unit?
ipn [44]
<span>In our system an astronomical unit is the average distance from the earth to the sun which is about 93 million miles. (92,957,000 miles) This is known as 1 AU.</span>
4 0
3 years ago
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