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solniwko [45]
3 years ago
6

Kenny wants to get to Washington DC within 4 hours. Washington DC is 133 miles away from where he is. What is the avg speed he m

ust go in order to meet his time frame ?
Physics
1 answer:
umka21 [38]3 years ago
4 0
He must travel 35 mph
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What can happen when two plates bordering each other suddenly move and release energy
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A. Earth crust shakes
Sudden movements in the fault line, ex: San Andreas fault line, can cause sudden earthquakes,
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The gas sample has a volume of 45.1 μL at 24.7 °C. What is the volume of the gas after the sample is heated to 37.2 °C at consta
likoan [24]

Answer:

   V₂  = 46.99 μL.

Explanation:

Given that

V₁ = 45.1 μL

T₁ = 24.7°C  = 273 + 24.7 = 297.7 K

T₂ = 37.2°C = 273+37.2=310.2 K

Lets take  ,The final volume = V₂  

We know that ,the ideal gas equation  

If the pressure of the gas is constant ,then we can say that

\dfrac{V_2}{V_1}=\dfrac{T_2}{T_1}

{V_2}=V_1\times \dfrac{T_2}{T_1}

Now by putting the values in the above equation we get

{V_2}=45.1\times \dfrac{310.2}{297.7}\ \mu \ L

V₂  = 46.99 μL.

The final volume will be 46.99 μL.

7 0
3 years ago
A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material.
olga2289 [7]

Answer:

True

Explanation:

A coaxial cable is a type of cable that has an inner conductor surrounded by an insulating layer, surrounded by a conductive shielding.

4 0
3 years ago
What acceleration will you give to a 25kg box if you push it with a force of 85N
Grace [21]
<h3>Answer:</h3>

3.4 m/s²

<h3>Explanation:</h3>

We are given;

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  • Force is 85 N

We are required to determine the acceleration;

  • According to second newton's law of motion force is given by the product of mass and acceleration.
  • That is;

Force = ma

Rearranging the formula;

a = F ÷ m

Therefore;

acceleration = 85 N ÷ 25 kg

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Thus, the acceleration of the box will be 3.4 m/s²

5 0
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Historically, rhenium was alloyed to the tungsten in the filament of valve tubes to increase electron emission. What is the majo
ziro4ka [17]

Answer:

usually x-ray tube filaments are devices that limit the current flow i.e. current cannot easily pass through them or we can say that they are current limited devices. So to allow fine electron transmission control by filament heating current, rhenium must not be used in x-ray tube filaments.

8 0
3 years ago
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