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In space an astronaut hammers nails the hammer moves in one direction and the astronaut moves?
Wiki User
∙ 13y ago
Due to Newton's 3rd law of motion the astronaut would move in the opposite direction unless he/she is braced against something.
Wiki User
∙ 13y ago
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What happens if an astronaut hits a large boulder with a hammer in space?
That depends on where He/She is standing: On the moon: Not much different that earth. In a space station: Umm, why is there a boulder in the space station again? Floating in space: He/she would fly backwards and the boulder would move away very slowly. Friction and gravity would keep the person in place on the Earth, moon or space station. However, when they are floating there is no external force. At that point the law of consevation of momentum is in full effect. ( p = m v ) Since the astronaut has a much smaller mass he/she moves more. A similar action-reaction can be seen when firing a standard gun. The bullet has a small mass compared to the person. The bullet moves very fast in one direction while the person only moves a little in the opposite direction.
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Describe how a battery causes electrons to move in a circuit?
The electrons don't actually move the electricity; the charge moves. The electrons slowly drift in the opposite direction from the charge.
What are the forces that act on an astronaut in outer space?
Work is done whenever the given two conditions are satisfied: (i) A force acts on the body. (ii) There is a displacement of the body by the application of force in or opposite to the direction of force. If the direction of force is perpendicular to displacement, then the work done is zero. If the satellite is in a perfectly circular orbit, then the force of gravity is always perpendicular to the satellite's velocity, and gravity never does any work. If the orbit isn't circular, then there is a radial component of velocity at most points in the orbit, and some gravitational acceleration, work, etc., but those are exactly matched by negative values at other points in the orbit, and the total over a complete orbit is zero again.
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What happens if an astronaut hits a large boulder with a hammer in space?
That depends on where He/She is standing: On the moon: Not much different that earth. In a space station: Umm, why is there a boulder in the space station again? Floating in space: He/she would fly backwards and the boulder would move away very slowly. Friction and gravity would keep the person in place on the Earth, moon or space station. However, when they are floating there is no external force. At that point the law of consevation of momentum is in full effect. ( p = m v ) Since the astronaut has a much smaller mass he/she moves more. A similar action-reaction can be seen when firing a standard gun. The bullet has a small mass compared to the person. The bullet moves very fast in one direction while the person only moves a little in the opposite direction.
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If you apply force in the same direction an object moves, the work on the object is positive.If the force is in the opposite direction as the direction the object moves, the work on the object is negative.
