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baherus [9]
3 years ago
6

a block that is 80 degrees is places next to a 20 degree block. the warmer block heats the cooler block by the process of... A)c

onvection. B)conduction. C) a and b. D) neither a or b
Physics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0
Answer: option B: conduction.

Conduction is the heat transfer that happens between two bodies in direct contact, due to the collision of the molecules, atoms and electrons within the body (microscopical level).
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Guys answer with a clear explanation and plzz don't spam.
timama [110]

Answer:

20.7N

Explanation:

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3 0
3 years ago
b. Comparing and Contrasting Compare the change in atmospheric pressure with elevation to the change in water pressure
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Answer:

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3 years ago
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Please help!!!
Lubov Fominskaja [6]

question: Please help!!!

If a bottle is being squeezed with a force of 10 Newtons and the area of the bottle is 15

squared inches. What is the pressure??

Answer:

1025.64 N/m²

Explanation:

Pressure: This can be defined as the ratio of force to area. The si unit of pressure is N/m².

From the question,

P = F/A........................ Equation 1

Where F = Force, A = Area.

Given: F = 10 Newtons, A = 15 Squared Inches = (15×0.00065) = 0.00975 m²

Substitute these values into equation 1

P = 10/0.00975

P = 1025.64 N/m²

Hence the pressure of the bottle is 1025.64 N/m²

5 0
3 years ago
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How much heat is needed to raise the temperature of an empty 2.0 x 101 kg vat made of
scZoUnD [109]

Answer:

Q = 7272 Kilojoules.

Explanation:

<u>Given the following data;</u>

Mass = 2.0*101kg = 202kg

Initial temperature, T1 = 10°C

Final temperature, T2 = 90°C

We know that the specific heat capacity of iron = 450J/kg°C

*To find the quantity of heat*

Heat capacity is given by the formula;

Q = mcdt

Where;

  • Q represents the heat capacity or quantity of heat.
  • m represents the mass of an object.
  • c represents the specific heat capacity of water.
  • dt represents the change in temperature.

dt = T2 - T1

dt = 90 - 10

dt = 80°C

Substituting the values into the equation, we have;

Q = 202*450*80

Q = 7272KJ or 7272000 Joules.

6 0
3 years ago
What do we get from the area between the speed-time graph of a body and the time axis?​
maxonik [38]

Explanation:

The area between the speed-time graph f a body and time axis measures the distance travelled by the body

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3 years ago
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