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3 years ago

The mass of earth 610^24kg its radius is 6.410^3km now calculate due to gravity on earth

Physics

1 answer:

irga5000 [103]3 years ago

7 0

Answer:

Explanation:

in your textbook, they have a formula like this:

g=mass of earth*G/R^2

G=6.67*10^-11

apply to this

we have g=6*10^2*4*6.67*10^-11/(6.4*10^3*1000)^2=9.78

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3 years ago

At noon, ship A is 140 km west of ship B. Ship A is sailing east at 30 km/h and ship B is sailing north at 25 km/h. How fast (in

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Answer:

The rate of change of distance between the two ships is 18.63 km/h

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between noon (12 pm) to 4 pm = 4 hours

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r² = a² + b²

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$2r(\frac{dr}{dt} ) = 2a(\frac{da}{dt} ) + 2b(\frac{db}{dt} )\\\\r(\frac{dr}{dt} ) = a(\frac{da}{dt} ) + b(\frac{db}{dt} )\\\\101.98(\frac{dr}{dt} ) = 20(-30 ) + 100(25 )\\\\101.98(\frac{dr}{dt} ) = -600 + 2,500\\\\101.98(\frac{dr}{dt} ) = 1900\\\\\frac{dr}{dt} = \frac{1900}{101.98} = 18.63 \ km/h$

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3 years ago

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From Newton's second law:
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2 = 9.8 sin(theta)
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3 years ago

The mass of earth 6*10^24kg its radius is 6.4*10^3km now calculate due to gravity on earth​

The mass of earth 610^24kg its radius is 6.410^3km now calculate due to gravity on earth