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inn [45]
3 years ago
14

a meteor is falling towards earth with 4m/s^2 acceleration due to gravity. if mass and radius of the earth are 6*10^24kg and 6.4

*10^6m respectively, find the height of meteor
Physics
1 answer:
MArishka [77]3 years ago
7 0

Answer

答えは3600KMです

Explanation:

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An electron is moving east in a uniform electric field of 1.55 N/C directed to the west. At point A, the velocity of the electro
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Answer:

Final velocity of electron, v=6.45\times 10^5\ m/s    

Explanation:

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v^2=u^2+2as........(1)

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a=\dfrac{qE}{m}

Use above equation in equation (1) as:

v^2=u^2+\dfrac{2qEs}{m}

v^2=(4.52\times 10^5\ m/s)^2+2\times \dfrac{1.6\times 10^{-19}\ C\times 1.55\ N/C}{9.1\times 10^{-31}\ kg}\times 0.395\ m

v = 647302.09 m/s

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3 0
3 years ago
Suppose a NASCAR race car rounds one end of the Martinsville Speedway. This end of the track is a turn with a radius of approxim
sergiy2304 [10]

Answer:

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r is the radius of the track = 57.0m

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Hence the centripetal acceleration of the race car is 10.53m/s²

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