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bagirrra123 [75]
3 years ago
11

Which factors affect heat transfer between a warm and a cool substance?

Physics
1 answer:
damaskus [11]3 years ago
8 0
Factors that affect heat transfer are:

1) Difference in temperature, 
2) Mass of the object
3) Specific heat of the object

Hope this helps!
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A circuit is a continuous loop. <br> a. True<br> b. False
TiliK225 [7]
False its an unbroken loop that allows electrons to flow through constantly
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3 years ago
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Water flows through a horizontal pipe (from a wider area to narrow area section) and then out into the atmosphere at a speed v1
Darina [25.2K]

Answer:

V = 6.36 m³

Explanation:

For this exercise we will use fluid mechanics relations, starting with the continuity equation.

Let's write the flow equation

        Q = v₁ A₁

       

The area of ​​a circle is

        A = π r²

Radius is half the diameter

        A = π/4  d²

        Q = v₁ π/4 d₁²

        Q = π/ 4 15 0.03 2

        Q = 0.0106 m3 / s

The volume of water in t = 10 min = 10 60 = 600 s

        Q = V / t

        V = Q t

         V = 0.0106 600

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4 0
3 years ago
Is sand a dependent or independent variable
anastassius [24]

Answer:

dependent variable

Explanation: Because sand changes when water touches it therefore it would be considered a dependent variable

6 0
3 years ago
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When a box of chocolate bars is in mechanical equilibrium, what can be correctly said about all the forces that act on it?
rjkz [21]

Answer:

All the forces are opposite and equal and will give net force zero.

Explanation:

Mechanical equilibrium is the equilibrium in which the total force on the system is zero means the system is neither accelerated nor any kind of torque on the system.

The mechanical system can also be defined as the equal forces are applied in opposite direction in a system which cancels out all the forces, will give net force zero.

Therefore, when a box of chocolate bars is in mechanical equilibrium all the forces in this system  are equal and the opposite which balances each other will give net force zero.

3 0
3 years ago
Vertically polarized light with an intensity of 36.8 lux passes through a polarizer whose transmission axis is an angle of 51.0°
Annette [7]

Answer:

0.01774 lux

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I_0 = Polarized light intensity = 36.8 lux

\theta = Angle

Through first filter

I_1=I_0cos^2\theta\\\Rightarrow I_1=36.8cos^2{51}\\\Rightarrow I_1=14.57\ lux

Through second filter

I_2=I_1cos^2\theta\\\Rightarrow I_2=14.57cos^2{88}\\\Rightarrow I_2=0.01774\ lux

intensity of transmitted light is 0.01774 lux

5 0
3 years ago
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