Find thermal efficiency of engine during constant pressure
An ideal diesel cycle is compressed from 2 to 0.13 l (isentropic) and then it expands during the constant pressure heat addition process to 0.3l. Under cold air standard conditions determine thermal efficiency of the engine.
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Determine the position of the particle when t=6 s and the total distance it travels through the 6-s time interval. Plot the path to determine the total distance traveled.
Astudent spots an unknown sample on a TLC plate and develops it in adichlormethane solvent. Only one spot develops with an RF value of 0.95. This single test does not verify that the unknown substanceis pure.
Determine the A) net work produced per unit mass of air each time this cycle is executed and B) the cycle's thermal efficiency.
Demonstrate that if 100mL of solution of a5.0 g of A in water were extracted with two 25 mL portion of ether,a smaller amount of A would remain in the water than if the solution was extracted with one 50mL portion of ether.
A roller coaster has 3 seats in each of 12 rows. Riders are assigned to seats in the order that they arrive. If you ride this roller coaster once, what is the probability of getting the coveted first row (round the three decimal places as needed)?
In a city of 120,000 people there are 20,000 norwegians. What is the probability that a randomly selected person will be norwegian?
If the specific heat ratio of the working fluid is 1.3, what is the highest thermal efficiency this gas turbine can have?
An environmental scientist says that PCB concentration is between 1.65 and 1.73 ppb. With what level of confidence can that statement be made?
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Due to the vulnerability of the youth that we serve in this home typically on the lower end of the spectrum it would be a safety concern to admit a youth
A teacher notices that some students are struggling to focus on lessons because they are hungry and anxious about safety at home.
Question: Which option best describes the emotional dimension of wellness in the classroom?
What is the term for a classroom management approach that allows students more freedom and autonomy in decision-making?
Paul's mother has been teaching him to bake bread. She tells him, "I will help you follow the recipe a few more times, but soon you will have to try it on your
A teacher notices that students are frequently talking while she is teaching. Which action best shows a positive classroom practice?
Maslows' physiological needs may be satisfied in the classroom when the teacher makes sure that the students