A person weighing 500 N rides on a Ferris wheel sitting on a bathroom scale. At the highest point of motion, the scale reads 200 N while the person continues to move in a circular path. The centripetal force on the person at this point is ________ N.
Fill in the blank(s) with the appropriate word(s).
300
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In an LC circuit, if we increase the initial charge on the capacitor (while keeping everything else the same), the circuit’s oscillation frequency will
A. increase. B. decrease. C. remain the same. D. One needs more information to answer.
When an apple that weighs 1 N is held at rest above your head, the net force on the apple is
A) 0 N. B) 0.1 N. C) 1 N. D) 10 N. E) none of the above
A plane has an airspeed of 142 m/s. A 30.0 m/s wind is blowing southward at the same time as the plane is flying. What must be the heading of the plane in order to move directly eastward relative to the ground?
A) 77.8° north of east B) 55.3° north of east C) 12.2° north of east D) 11.9° north of east E) 78.1° north of east
If you need 10 moles of sucrose, how many liters of a 4.0 molar solution would you need?
A) 2.5 L B) 0.25 L C) 25 L D) 10. L E) none of the above