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Question 1) A vertical hydraulic cylinder has a piston with a diameter of 75mm, if the ambient pressure is 80 kPa, determine the mass of the piston if the internal pressure is 1MPa.Question 2) Saturated steam flows through a pipe of diameter 5 cm with a velocity of 45 m/s at 400kPa. If the mass flow rate of steam is 0.15 kg/s determine:What is The specific volume in m3/kg?What is the Volume flow rate m3/s?Question 3) Air flows through a pipe of 60cm diameter with a velocity of 35 m/s. If the specific volume of the air is 0.5 m3/kg determine:What is The flow?What is the Mass flow?Question 4) A cup of water (0.2kg) is at 20 degrees C. What height in meters is needed to produce sufficient Potential Energy to increase the temperature to 45 degrees C? (Assume no other losses).Question 5) Pressure in a piston system is at 140 kPa and a volume of 0.5m3 if the volume is increased to 0.8m3 what is the new pressure?Question 6) A volume of 0.0125 m3 at a temperature of 140 degrees C and pressure at 75kPa has the temperature increased by 150 degrees F. What is the new volume?
A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 324 feet of fencing and does not fence the side along the street, what is the max area that can be enclosed?
How many small screen televisions must be produced in a month in order to minimize the company's average cost? Show all steps and justify your answer.
Fear of darkness is a common emotion. The following data were obtained by asking 200 individuals in each age group whether they had serious fears of darkness. At α = 0.01, do we have sufficient evidence to reject the hypothesis that "The same prop..
The lifetimes of projector bulbs of a particular type are normally distributed with a mean of 470 hours and a standard deviation of 15 hours. What percentage of the bulbs has lifetimes that lie within 2 standard deviations of the mean on either si..
Sarah is a moderately active woman. She weighs 130 pounds, is 68 inches tall, and is 25 years old. Based on the following formula, what are her caloric needs? What happens to her caloric needs as she gets older? Why do you think this happens? usin..
A volcano fills the volume between the graphs z=0 and z=1/(x^2+y^2)^14 and outside the cylinder x^2+y^2=1. Find the volume of the volcano.
You purchase shares of a technology company and hold them for one yer. During that time the price pershare ranges from $64 to $143. Write an absolute value inequaity to represent the stock prices for that years.
To estimate the proportion p of passengers who had purchased tickets for more than $400 over a year's time, an airline official obtained a random sample of 75. The number of those purchasing tickets for more than $400 was 45.
Apply Sturm's sequences and find out exactly how many distinct roots are there for each of the polynomials of problem one
In an essay, compare and contrast the use of the SDLC and Scrum for developing your application. Recommend one of these two processes and justify your recommendation
Is the sum of two mixed numbers always a mixed number? Why or why not - provide an example to illustrate your answer to the first question.
Determine whether the sets are vector spaces - with the usual operations of vector - operations of vector addition and scalar multiplication
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