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Problem: A speed skater moving across frictionless ice at 8.3 m/s hits a 5.1 m-wide patch of rough ice. She slows steadily, and then continues on at 6.5 m/s.
Part A: What is her acceleration on the rough ice?
I need help to find her acceleration on the rough ice.
a blue ball is thrown upward with an initial speed of 19.6 ms from a height of 0.7 meters above the ground. 2.4 seconds
A solenoid of length 22 centimeter and radius 1 centimeter with 375 turns is in an external magnetic field of 660 G that makes an angle of 60o with the axis of the solenoid. Estimate the magnitude of the emf induced in the solenoid
Two identical rollers are mounted with their axes parallel, in a horizontal plane, a distance 2d = 23.6? cm apart. The two rollers are rotating inwardly at the top with the same angular speed ?.
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Microbiologists measure total current due to potassium ions (K +) moving through a cell membrane of a rock crab neuron cell to be 35 nA. How many ions pass through the membrane each second
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f the U.S. demand for electricity continues to grow at about 2% per year, how many more MWe would be needed to meet that demand in 10 years, What fraction of our present use of natural gas is this
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