Even number of die rolls
We roll a fair die repeatedly until we see the number 4 appear and then we stop. Find the probability that we needed an even number of die rolls.
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Its maximum altitude is h. Determine and plot the fraction f2 of the total flight time that the projectile is above the level f1h, where f1 is a fraction which can vary from zero to 1. State the value of f2 for f1 = 3/4.
In a simple random sample of 80 automobiles registered in Jland , 28 of them were found to have emission levels that exceed a state standard. let p be the proportion of all automobiles in Jland hat have emission levels that exceed the state standa
A vessel contains 2 litres of gas at a pressure of 300kpa and a temperature of 27 degrees C. 3 litres of gas at the same temperature and pressure are forced into the vessel.
Calculate the work required to compress air from standard atmosphereic pressure to 2.3 atm in KJ/Kg air. Assume a polytropic process constant specific heats and and exponenent of 1.25.
During a 100 m sprint, Usain Bolt reaches his maximum speed in 2 seconds from rest with constant acceleration. He then maintains this maximum speed until he reaches the 90 m mark, when he peeks back and sees that the other sprinters in the race ar
The enthalpies of entering and exiting fluid are 2791.2 kJ/kg and 2795.9 kJ/kg, respectively. If the work done by the system is 4.101 kW, determine the heat supplied.
A recent survey described the sleep time of college students as normally distributed with a standard deviation of 1.15 hours and a mean of 7.02 hours. Suppose we wish t take a simple random sample of size 81 from the population of college students
Why does a computer monitor flicker when i video tape it with a movie camera? Is it the same reason why when i wave my pen in front of a monitor fast it gives a wierd effect like there are bunch of flashing pens?
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