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lisov135 [29]
3 years ago
11

..................

Physics
1 answer:
kap26 [50]3 years ago
3 0

Answer:

ummmm is this even a question

Explanation:

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Why is carbon added to iron
swat32

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it transforms it into high carbon alloy that is harder and can be sharper but is also more brittle in the process.

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Which of the following happens when a material undergoes a phase change?
belka [17]

We start by describing that phase transition is most commonly used to describe the change between solid, liquid and gaseous states of matter, including plasma for particular cases. When the transitional state between two substances is reached, the temperature change becomes null until there is the exchange required for the union or disunity of the atoms. The thermal energy supplied or eliminated is equal to the binding energy between atoms.

There is no change in chemical composition unless a combustion state is reached. But that is not related to the phase transition. The molecules are not altered either because that would alter the composition and in the phase change the temperature in this state has no change.

Therefore the correct answer is B.

6 0
3 years ago
Calculate the net convective heat transfer loss rate from both vertical surfaces of the plate to the air. (hint: h values should
pychu [463]

Net convective heat transfer loss rate (gnet)

Gnet = 2h, A (Ts - T∞)

=2(4.51) (0.001) (25)

Gnet = 0.2250 W.

There are two types of convection: natural convection and forced convection. Natural convection is caused by differences in the density of liquids due to differences in temperature (eg "hot air rises"). Global atmospheric circulation and local weather phenomena (including wind) are due to convective heat transfer.

Newton's Law of Cooling is a widely used equation for calculating both forced and natural net convective. The formula for Newton's Law of Cooling is Q = h A ΔT. Equation parameters and their typical US and SI.

Learn more about Net convective at

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7 0
2 years ago
How does depth of liquid affect pressure in solids
enyata [817]
The higher the depth, the higher the mass of the liquid that creates pressure
6 0
3 years ago
The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, which orbits a rather average star in the dist
Sidana [21]

Complete Question

The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, which orbits a rather average star in the distant Garbanzo Galaxy. A scouting party sets out to explore. The party's leader–a physicist, naturally–immediately makes a determination of the acceleration due to gravity on the Pink Planet's surface by means of a simple pendulum of length 1.08m. She sets the pendulum swinging, and her collaborators carefully count 101 complete cycles of oscillation during 2.00×102 s. What is the result? acceleration due to gravity:acceleration due to gravity: m/s2

Answer:

The acceleration due to gravity is  g = 167.2 \ m/s^2  

Explanation:

From the question we are told that

     The length of the simple pendulum is L = 1.081.08 \ m

      The number of cycles is  N =  101

       The time take is  t =  2.00 *10^{2 \ }s

Generally the period of this oscillation is mathematically evaluated as

         T = \frac{N}{t }

substituting values

         T = \frac{101}{2.0*10^2 }

        T = 0.505 \  s

The period of this oscillation is mathematically represented  as

               T = 2 \pi \sqrt{\frac{l}{g} }

making g the subject of the formula we have

              g = \frac{L}{[\frac{T}{2 \pi } ]^2 }

              g = \frac{4 \pi ^2 L }{T^2 }

Substituting values

               g = \frac{4 * 3.142 ^2  * 1.08 }{505.505^2 }

               g = \frac{4 * 3.142 ^2  * 1.08 }{0.505^2 }  

              g = 167.2 \ m/s^2  

7 0
3 years ago
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