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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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speed of sound is 343 Ms at 20 degrees Celsius. The frequency heard from the sound is 256 Hz. what is the sounds wavelength?
Lina20 [59]
S= 343m/s
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WL=V/F

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7 0
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inessss [21]

Answer:

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lilavasa [31]
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An object weighs 39.36 newtons. What is its mass if a gravitometer indicates that g = 9.83 m/s2?
CaHeK987 [17]
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F = mg
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Hope this answers the question. Have a nice day.
6 0
4 years ago
Read 2 more answers
Can someone please help me?
Luba_88 [7]

Answer:

1525 meters above ground

Explanation:

So to do this you will need to write this in slope intercept form or y=mx+b. So 650 would be the b, 175 would be the m, and the x would be 5 so the equation would be y=175(5)+650 so if you solve or simplify the equation you will get 1525 meters above the ground and that would be our final answer.

5 0
3 years ago
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