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gavmur [86]
3 years ago
7

We have a metal plate that has a circular hole with radius "R". if we raise the temperature of this plate, what happened with ra

dius of hole?
increasing, decreasing or stay constant?
Physics
1 answer:
Sonbull [250]3 years ago
7 0
If the metal plate that has a circular hole with radius R. And if we raise the temperature of this plate the radius of the hole will increase.
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A revolutionary war cannon, with a mass of 2090 kg, fires a 16.7 kg ball horizontally. The cannonball has a speed of 113 m/s aft
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Answer:

0.90291 m/s

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Explanation:

m_1 = Mass of canon = 2090 kg

m_2 = Mass of ball = 16.7 kg

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v_2 = Velocity of ball = 113 m/s

In this system the momentum is conserved

m_1v_1=m_2v_2\\\Rightarrow v_1=\dfrac{16.7\times 113}{2090}\\\Rightarrow v_1=0.90291\ m/s

The velocity of the cannon is 0.90291 m/s

Applying energy conservation

\dfrac{1}{2}m_1v_1^2+\dfrac{1}{2}m_2v_2^2=\dfrac{1}{2}m_2v^2\\\Rightarrow m_1v_1^2+m_2v_2^2=m_2v^2\\\Rightarrow v_2=\sqrt{\dfrac{m_1v_1^2+m_2v_2^2}{m_2}}\\\Rightarrow v_2=\sqrt{\dfrac{2090\times 0.90291^2+16.7\times 113^2}{16.7}}\\\Rightarrow v_2=113.45055\ m/s

The ball would travel 113.45055-113 = 0.45055 m/s faster

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Which of the waves has the smallest amplitude?
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Banked Curves: A 600-kg car is going around a banked curve with a radius of 110 m at a steady speed of 24.5 m/s. What is the app
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The angle of baking from the calculation is obtained as 30°.

<h3>What is banking?</h3>

The term banking refers to a means of preventing vehicles from skidding off the road at curves.

We know that the banking angle is obtained from;

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θ = tan-1(625 /1078)

θ = 30°

Learn more about the banking angle:brainly.com/question/26759099?r

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Mass of the displaced material. In water it would be the mass of the water that the volume of the ball displaces.
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An electron in the Bohr model of hydrogen revolves around the nucleus to:
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An electron in the Bohr model of hydrogen revolves around the nucleus to possess energy.

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