Problem based on constant angular acceleration
A 24-inch string is wrapped around the 1/8-inch radius axis of a yo-yo. Starting from rest, the yo-yo descends with a constant angular acceleration of 4 rad/s2.
1. How long will it take the string to completely unwind?
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The process begins with p1=250 kPa and v1=1.5m^3 and ends with p2=100kPa. Determine the final specific volume in m^3/kg. Plot the process on graph of pressure versus specific volume.
If 8 percent of the power of a 100 W bulb is radiated in the visible spectrum, how many visibly photons are radiated per second?
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On average, a major earthquake (Richter scale 6.0 or above) occurs 3 times a decade in a certain California county. Find the probability that one major earthquake will occur within the next decade.
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Find expected gain (or loss) for a holder of a European call option with strike price $90 to exercised in 6 months if the stock price on the exercise date may turn out to be $87, $92 or $97 with probability 1/3 each, given that the option is bough
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