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lana [24]
3 years ago
13

the ratio of kinetic energy to the potential energy of a certain object of mass m at a height of 40 m above ground level is 2:1.

What is the speed of the object at the point? Use g=10 m/s^2 A.)20 m/s B.)40 m/s C.)30 m/s D.) 10 m/s
Physics
1 answer:
lubasha [3.4K]3 years ago
6 0
I believe it is A)    2(1/2mv^2)=mgh   <===cross out masses
                           2(1/2V^2)=gh
                           
Solve for V
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We can understand in a better way how this works with the figure attached:  

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2.are reflected following the law of Reflection.  

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4.Then, the reflected divergent rays are captured by our eye converging on the retina.  

Now, the image is said to be virtual because it is a copy of the object that looks as if the object is behind the mirror and not in front of it or on the surface, but it is not really there. However, it can be seen when we focus it with our eyes.  

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the same size as the object.  

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QC In ideal flow, a liquid of density 850 kg / m³ moves from a horizontal tube of radius 1.00cm into a second horizontal tube of
kvv77 [185]

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<h3>What is pressure?</h3>

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rest is attached in image

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2 years ago
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vivado [14]

Answer:

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Earthquakes are most likely to occur near or on fault lines. A great example of this is the ring of fire, a gigantic fault line that gives catastrophic earthquakes.

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Answer:

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