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sergiy2304 [10]

4 years ago

10

An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 k

g. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects some gas with a velocity of +35 m/s. As a result, the astronaut recoils with a velocity of -0.39 m/s. After the gas is ejected, the mass of the astronaut (now wearing a partially empty propulsion unit) is 165 kg. What percentage of the gas propellant was ejected from the completely filled propulsion unit?

1 answer:

ivann1987 [24]4 years ago

6 0

Answer: 9.5%

Explanation:

% deplected= Meject ÷ (Meject+Mleft) ×100%

Mleft=(165 - 146)kg = 19kg

% depleted = 2.0/(2.0 + 19) ×100=9.5%

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Explanation:

The electrostatic force between two charged objects is given by Coulomb's law:

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In this problem, we are given the following:

$q_1 = 8\cdot 10^{-5} C$

$q_2 = 3\cdot 10^{-5} C$

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