much does a 70-kg astronaut weigh in space, far from any celestial body? What is

Question

much does a 70-kg astronaut weigh in space, far from any celestial body? What is their mass at this location? Weight Mass 17) Which of the following statements is true (T) or False (F)? (a) Mass and weight are the same thing expressed in different units (b) If an object has no weight, it must have no mass (c) If the weight of an object varies, so must the mass (d) Mass and inertia are different concepts (e) Weight is always proportional to mass Why I8] When you stand on Earth, your feet doesn't Earth accelerate away from you? push against it with a force equal to your weight. 19] Identify the action and reaction forces in the following situations: Action Reaction (a) the earth attracts the moon: (b) a boy kicks a football: (c) a rocket accelerates upward: (d) a car accelerates forward: (e) a high jumper leaps: (f) a bullet is shot from a gun [10] Suppose that you are holding a cup of coffee in your hand. Identify all forces on the cup and the reaction to each force.

Explanation / Answer

6. weight=0N

     mass=70kg

7. a)F

     b)F - every body weights 0, when measured in space without gravity

     c) F- mass is constant.

     d)F-The tendency of an object to resist changes in its state of motion varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has

     e)T- weight=mg

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