Wooden ball tied to the bottom of a swimming pool
A wooden ball is tied to the bottom of a swimming pool by a string. What is the tension in the string if the ball's diameter is 0.15 m and its mass is 144 g? The water in the pool is fresh water, 1000 kg/m3 density.
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Suppose that the time to failure of a particular part in a system has an exponential distribution with expected time to failure of 5 minutes. Also suppose there is a machine which replaced a failed part instantaneously upon failure.
Fortunately, your attention in F300 resulted in your being able to guarantee an 8% return on any money invested between now and the trip (seven years).
What is the approximate percentage of girls between 124.4 cm and 125.6 cm? What is the approximate percentage of girls between 124.1 cm and 125.9 cm?
After more analysis, you determine that what you will need to have in the bank in 2020 is $18,500 (which is a future value unrelated to question Tokyo 01).
A 6-year bond which pays 8 percent interest semiannually sells at par ($1,000). Another 6-year bond of equal risk pays 8% interest annually.
You decide to test the hypothesis by observing 20 cars with both a man and a woman in the front, and counting how many of those have a man driving.
Atlas Insurance wants to sell you an annuity which will pay you $600 per quarter for 25 years. You want to earn a minimum rate of return of 5.0 percent. What is the most you are willing to pay as a lump sum today to buy this annuity?
If a 4.0-N force is applied to the plunger and the diameters of the plunger and the needle are 1.2 cm and 2.5 mm, respectively, what force is needed to prevent fluid flow at the needle?
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