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?
Find the force required to pull the block. Assume the velocity distribution in the oil film is linear. The surface is inclined at an angle of 25º from the horizontal.
A carnival has a game of chance: a fair coin is tossed. If it lands heads you win $1.00 and if it lands tails you lose 50 cents. How much should a ticket to play this game cost if the carnival wants to break even?
A platinum ball weighing 15.1 g is removed from a furnace and dropped into a 305 g of water at 15°C. If the equilibrium temperature is 22ºC and the specific heat of platinum is 0.401J/(gºC), what must have been the temperature of the
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.
A 0.200 kg metal rod carrying a current of 10.0 A glides on two horizontal rails 0.500 m apart. What vertical magnetic field is required to keep the rod moving at a constant speed if the coefficient of kinetic friction between the rod and the rail
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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