An insulated rigid tank having a 0.2 m3 volume initially contains air at 400 kPa and 313 K. The amount of paddle-wheel work done on the system is 200 kJ. Calculate the nearest value of entropy change

a. 0.66 kJ/K

b. 0.88 kJ/K

c. None

d. 0.44 kJ/K

e. 0.33 kJ/K

URGENT

a) samples of rejuvenated mitochondria are mutated (defective) with probability 0.2.find the probability you need to examine at least 6 samples to find 2 samples containing mutations.report answers to 3 decimal places.(try to type your answer)

b) what is the first,second,third quartile, and the outlier of 15,29,30,34,35,36,37,37,37,40,42,42,44,44,45,46,49,51,53,54?(try to type your answer)

c) the claim is that the IQ scores of statistics professors are normally distributed, with a mean less than 126. A sample of 17 professors had a mean IQ score of 125 with a standard deviation of 10. find the value of the test statistic?

Water at a mean velocity of 0.2 m/s is heated from 20 to 40°C by passing it through a 0.5-cm-ID tube. The 2
surface is heated with a uniform heat flux of 6000 W/m . Find the following: a) The length required to heat the water to a given temperature.,b) the surface temperature at the inlet of the tube. Given that the following information: The physical properties of liquid at 30 °C:
?? =4182?⁄??.°?,?=0.6405?⁄?.°?,??=3.57,?=0.5537×10−6?2⁄?,?=988??⁄?3

Perform the flood routing for a reach of river given x=0.2

and K=2 days. The inflow hydrograph with dt=1 day is given

below. Assume equal inflow and outflow rates on March 16.

a-Calculate conventional yield effort at 0.2% (0.002 in./in.)

b- Tensile strength.
c- The modulus of elasticity.
d- Elongation
e- The reduction in area.
f- The engineering effort to fracture
g- The real stress to fracture
h- The modulus of resilience

Magnesium

- Initial diameter of the test tube: 12 mm
- Initial calibrated length: 30 mm
- Calibrated length after fracture: 32.61 mm
- Diameter after fracture. 11.74 mm

An electric vehicle has the following parameter values:

m_v = 800kg

C_D =0.2

A_f = 2.2 m²

ρ = 1.18 kg/m

f r = 0.008 + 0.6×10^-6×v² (v: vehicle speed in m/s)

The vehicle is on level road. It accelerates from 0 to 100 km/h in 10s such that its velocity profile is given by v (t) =0.29055t² for 0 < t < 10s. (The mass factor is assumed unit)

a. Define the traction force expression F_t

b. Sketch F_t versus time

c. Define the instantaneous traction power expression

d. Calculate the energy consumed during the acceleration (0 < t < 10s)

e. Calculate the energy lost for non-conservative forces (wind and rolling resistance)

f. Find the change in kinetic energy and the change in tractive energy during acceleration.

At a given flow parameter, we would like to increase G' from 0.1 to 0.2. Check which of the following will result.

A. The effect on pressure drop cannot be determined.

B. The pressure drop will decrease.

C. The pressure drop will increase.

D. The pressure drop will remain the same.

JAVA

Lab 0.2 — Calculating Averages (Averages)

The file numbers.text consists of sequences of numbers, each sequence preceded by a header value and then followed by that many integers/ (For example the first line in the example below contains a header value of 3 followed by the three values 1, 2, and 3. Read in the sequences and print their averages. When all sequences have been read in, print out the number of sequences processed.

The header and subsequent values are placed on the same line for readability, but could just have easily been spread across two or more line, i.e., you don't have to process them using nextLine; simply read them in using nextInt.)

The name of your class should be Averages.

Sample Test Run

For example if the file numbers.text contains:

3 1 2 3
5 12 14 6 4 0
10 1 2 3 4 5 6 7 8 9 10
1 17
2 90 80

the program should produce the following output:

The average of the 3 integers 1 2 3 is 2.0
The average of the 5 integers 12 14 6 4 0 is 7.2
The average of the 10 integers 1 2 3 4 5 6 7 8 9 10 is 5.5
The average of the 1 integers 17 is 17.0
The average of the 2 integers 90 80 is 85.0
5 sets of numbers processed

A piston‑cylinder device initially contains 0.2 m3 of helium at 100 kPa and 25C. The helium is then compressed during a polytropic process (Pvn = constant). The final pressure is 270 kPa and the final temperature is 150C. Determine (a) the mass of the helium (kg), (b) the final volume (m3), (c) the poly tropic exponent n, (d) the work for the compression process (kJ), and (e) the heat transfer (kJ).

Samuel Thomas is a cost accountant and business analyst for Dashing Design Company? (DDC), which manufactures expensive brass doorknobs. DDC uses two direct cost? categories: direct materials and direct manufacturing labor. Thomas feels that manufacturing overhead is most closely related to material usage.? Therefore, DDC allocates manufacturing overhead to production based upon pounds of materials used.

At the beginning of 2014?, DC budgeted annual production of 450,000 doorknobs and adopted the following standards for each? doorknob:

Actual results for April 2014 were as? follows:

Requirements:

a. Direct materials price variance? (based on? purchases)

b. Direct materials efficiency variance

c. Direct manufacturing labor price variance

d. Direct manufacturing labor efficiency variance

e. Variable manufacturing overhead spending variance

f. Variable manufacturing overhead efficiency variance

g. ?Production-volume variance

h. Fixed manufacturing overhead spending variance