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physics question 1

# physics question 1 - Vector has magnitude 3.7 units vector...

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How far above the Earth's surface does an object have to be in order for it to have the same weight as it would have on the Moon's surface? (Neglect any effects from Earth's gravity on the object on the Moon's surface and vice-versa. Use any astrophysical data required.) In kilometers Juan is helping his mother rearrange the living room furniture. Juan pushes on the armchair with a force of 30 N directed at an angle of 15degrees above a horizontal line while his mother pushes with a force of 43 N directed at an angle of 20degrees below the same horizontal. What is the vector sum of these two forces? direction and magnitude Two vectors, each of magnitude 4.0N are inclined at a small angle of 6 degrees below the horizontal as shown in the figure. What is the magnitude and direction (measured Clockwise from +x axis) of the vector resulting from the sum of those two vectors?

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Unformatted text preview: Vector has magnitude 3.7 units; vector has magnitude 5.9 units. The angle between and is 45 . What is the magnitude of + ? Woman who weighs 620 N sits on a chair with her feet on the floor and her arms resting on the chair's armrests. The chair weighs 105 N. Each armrest exerts an upward force of 25 N on her arms. The seat of the chair exerts an upward force of 490 N. (a) What force does the floor exert on her feet? b) What force does the floor exert on the chair? c) Consider the woman and the chair to be a single system. How much is the sum of the external forces? 1. 600 N 2. 100 N 3. 0 4. 1100 N 5. 500 N Margie who weighs 432.7 N, is standing on a bathroom scale that weighs 44.1 N. (a)With what force does the scale push up on Margie? (b)With what force does the Earth push up on the scale?...
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