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Marat540 [252]
3 years ago
13

The overall energy change that occurs when a solution forms is called the heat of solution

Physics
1 answer:
rewona [7]3 years ago
8 0
True. Hope this helps. :)
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Which is not one of the forms that energy can take?
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Question 1: Newtonian. It refers to work of Newton. Light, electrical and chemical energies are different forms of energy. 
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What action will slow down the rate of a reaction?
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5 0
3 years ago
Suppose a yo-yo has a center shaft that has a 0.230 cm radius and that its string is being pulled.
Fofino [41]

Answer:

Part a)

\alpha = 782.6 rad/s^2

Part B)

\omega = 587 rad/s

Part c)

a_t = 24.3 m/s^2

Explanation:

Part a)

As we know that

a = R \alpha

so we will have

a = 1.80 m/s^2

R = 0.230 cm

\alpha = \frac{a}{R}

\alpha = \frac{1.80}{0.230 \times 10^{-2}}

\alpha = 782.6 rad/s^2

Part B)

Angular speed of the yo-yo

\omega = \alpha t

so we have

\omega = 782.6 \times 0.750

\omega = 587 rad/s

Part c)

Tangential acceleration is given as

a_t = R \alpha

a_t = (3.10 \times 10^{-2})(782.6)

a_t = 24.3 m/s^2

6 0
3 years ago
If the electron is initially in the ground level, E1=0.625E[infinity]E1=0.625E[infinity], and absorbs a photon, what maximum wav
tekilochka [14]

Answer:

 λ = 3.1824 10-25 m

Explanation:

To release the electron from the power well the absorbed photon electro must be greater than or equal to the energy of the electron in the power well

           

The photon energy is E_photon = 0.625 J

The speed of light is

       c = λ f

         

Let's use Planck's equation

        E = h f

             

We substitute

       E = h c / λ

        λ = h c / E

        λ = 6.63 10-34 3 108 / 0.625

         λ = 3.1824 10-25 m

4 0
3 years ago
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