Calculate the pressure in the pipe on the hilltop
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A Carnot Engine operates between two reservoirs maintained at 400 degrees celcius(673.15K) and T2, respectively. The heat transfer from the high temperature reservoir is 25kW.
A 190 kg object is moving 15 m/s. If a net work of 12500 J is done on the object to increase its speed, then use the Work-Energy Theorem to find the final speed of the object.
A researcher wishes to test the effectiveness of a flu vaccination. 150 people are vaccinated, 180 people are vaccinated with a placebo, and 100 people are not vaccinated. The number in each group who later caught the flu was recorded. The results
The pressure of the air in the cylinder is 140kPa. Model the air as an ideal gas. Find the final temperature of the air in the cylinder.
In a pipe 0.3 m in diameter, 0.3 m3/s of water is pumped up a hill. On a hilltop (elevation 48 m), the line reduces to 0.2 m diameter. If the pump maintains a pressure of 690 Kpa at elevation 21 m, calculate the pressure in the pipe on the hilltop
The distribution of sample means will be normal regardless of the shape of the data in the population (i.e. calorie content of all frozen dinners of this type produced during this particular period).
Seventy percent of the bicycles sold by a certain store are mountain bikes. Among 100 randomly selected bike purchases, find the probabilities below. (Round all answers to four decimal places.) What is the approximate probability that at most 70 a
The coefficients of friction are ms=0.40 and mk=0.30 between all surfaces of contact. Determine the smallest force P required to start the 30-kg block moving if cable AB (a) is attached as shown, (b) is removed.
Question Part Points Submissions Used In a national survey of 2039 adults, 1550 responded that lack of respect and courtesy in American society is a serious problem, and 1283 indicated that they believe that rudeness is a more serious problem than
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