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Marta_Voda [28]
3 years ago
8

Two men push a bobsled with a total force of 250 Newtons. The

Physics
1 answer:
IgorC [24]3 years ago
8 0

Answer:

0.78m \: per {s}^{2}

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A bullet is fired horizontally at a height of 2 meters at a velocity of 930 m/s. Assume no air resistance. How far did the bulle
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A boy on rollerskates is travelling along at 8 m/s. He has a mass of 60 kg and is carrying his
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Answer:

6m/s

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the original momentum = mass x velocity = 8x (60+10) = 560

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200+60A = 560

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An electric circuit has a 200 22 resistor and a current of 5 A. What is its voltage?
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If it takes a planet 2.8 × 108 s to orbit a star with a mass of 6.2 × 1030 kg, what is the average distance between the planet a
Levart [38]

Answer:

9.36*10^11 m

Explanation

Orbital velocity  v=√{(G*M)/R},

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v=ωR, with ω as the angular velocity and R the radius

ωR=√{(G*M)/R},

ω=2π/T,

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To get R we write the formula by making R the subject of the equation

(2π/T)*R=√{(G*M)/R}

{(2π/T)*R}²=[√{(G*M)/R}]²,

(4π²/T²)*R²=(G*M)/R,

(4π²/T²)*R³=G*M,

R³=(G*M*T²)/4π²,

R=∛{(G*M*T²)/4π²},

Substitute values

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