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Elden [556K]
3 years ago
5

/How much kinetic energy does an 80 kg man have while running at 1.5 m/s

Physics
1 answer:
igomit [66]3 years ago
7 0
K.E = 0.5 * m * v^2 
  = 0.5 * 80 * (1.5)^2 
K.E = 90 joule 
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To solve the problem it is necessary to apply the concepts related to Kepler's third law as well as the calculation of distances in orbits with eccentricities.

Kepler's third law tells us that

T^2 = \frac{4\pi^2}{GM}a^3

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T= Period

G= Gravitational constant

M = Mass of the sun

a= The semimajor axis of the comet's orbit

The period in years would be given by

T= 1941-550\\T= 1391y(\frac{31536000s}{1y})\\T=4.3866*10^{10}s

PART A) Replacing the values to find a, we have

a^3= \frac{T^2 GM}{4\pi^2}

a^3 = \frac{(4.3866*10^{10})^2(6.67*10^{-11})(1.989*10^{30})}{4\pi^2}

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a = 1.86303*10^{13}m

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R = a(1-e)

R = 1.86303*10^{13}(1-0.997)

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3 years ago
Lab: Kinetic EnergyIn Part I, the independent variable was . In Part II, the independent variable changed to . The dependent var
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Answer:

motion

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A 0.14 kilogram baseball is throw in a straight line at a velocity of 30 m/sec.what is the momentum of the baseball
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4.2 kg m/s hope this helps
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Explanation:

"1 meter per second per second" means acceleration of an object. It is equal to the rate of change of velocity. Its SI unit is m/s^2.

It is simply given by :

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"1 meter per second per second" means that the velocity of an object can increase by 1 meter per second.

4 0
3 years ago
A 50.0-kg child stands at the rim of a merry-go-round of radius 2.25 m, rotating with an angular speed of 3.30 rad/s.. What is t
lara [203]

Answer: the child's centripetal acceleration=24.50 m/s²

Explanation:

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=24.5025m/s²

=24.50 m/s²

6 0
3 years ago
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