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eddie buchanan

eddie b.

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Uniparental disomy (UPD) is when a child inherits two copies of a chromosome from one parent and none from the other. In which of the following scenarios is a child very likely to develop a disease linked to the UPD. A. When the chromosome contains imprinted genes B. When the chromosome contains genes involved in brain development C. When the chromosome encodes enzymes that function in the mitochondria D. When the chromosome encodes long non-coding RNAs

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The disk rotates about a fixed point with the angular velocity and acceleration shown. The pin moves in a slot angled at 30° from the vertical, and its center at the moving pin is 50 cm from the center of the disk. Determine the absolute vector velocity and vector acceleration of the pin. $\vec{r}_B = \vec{r}_A + \vec{r}_{B/A}$ $\vec{v}_B = \vec{v}_A + \vec{\Omega} \times \vec{r}_{B/A} + (\vec{v}_{B/A})_{xyz}$ $\vec{a}_B = \vec{a}_A + \vec{\Omega} \times \vec{r}_{B/A} + \vec{\Omega} \times (\vec{\Omega} \times \vec{r}_{B/A}) + 2\vec{\Omega} \times (\vec{v}_{B/A})_{xyz} + (\vec{a}_{B/A})_{xyz}$ $\Omega = 20 \frac{rad}{s}$ $\vec{\Omega} = -5 \frac{rad}{s^2}$

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Which of the following needs from Maslow's hierarchy is addressed by the U.S. Army's advertising slogan "Be all you can be"? B) belongingness needs D) self-actualization needs C) ego needs A) safety needs

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Division of labor means that ________. ? the working classes are unable to agree about important issues ? work is designed so that tasks can be done by any available worker ? job descriptions carefully lay out the responsibilities of each employee ? people have too many tasks to do to become proficient at any of them

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If you lift up on the 25 kg bag with 275 N of vertical force, the acceleration of the bag will be: If you lift up on the 25 kg bag with 275 N of vertical force, the acceleration of the bag will be: 21m/s2 4m/s2 1m/s2 11m/s2

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Question 4 12.5 pts Which of the following would be a violation of the Second Law of Thermodynamics? A spoon has been sitting in a bowl of day-old soup that has been left out on the counter all night long. The counter, the bowl, and the soup are all 20 degrees C, but the spoon is 25 degrees C. You vigorously stir some sweetened ice tea, and the dissoved sugar re- crystallizes out of the tea. A tiny sample of gas you have stored in a magnetic container is measured to have only 25 J of thermal energy remaining. Using laser cooling (yes, that's a real thing!) you transfer the last 25 J out of the gas, bringing it's temperature down to 0 K. A spray of gasoline vapor is ignited in the piston of an internal combustion engin. The combusting gas releases a total of 1,750 J of thermal energy, and does 2,250 J of mechanical work on the piston.

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Describe the cells that you viewed using the inverted epifluorescence microscope. Using your textbook and other sources, describe how the components within these cells were made to fluoresce. (5 marks)

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7. (a) Differentiate between marginal cost and total cost. (b) The table below shows firm's revenue and costs schedule at different levels of output. Study the table carefully and answer the questions that follow. Quantity of beans Total Revenue Marginal Total cost Marginal cost in (tonnes) (TR) ($) Revenue ($) (TC) ($) (MC) ($) 0 0 - 1 9 9 10 9 2 P 9 18 T 3 30 8 24 6 4 30 4 28 U 5 Q 0 35 7 6 28 -1 43 8 7 28 -3 S 10 8 24 R 65 12 (b) Complete the table by calculating the missing figures for P, Q, R, S, T and U. (c) At what output level is profit maximized? (d) Calculate the profit when the quantity sold is three tonnes. (e) At what output level is the marginal cost highest? 8. The table below shows schedule of the total revenue of a farmer who produces rice. Use the table to answer the questions which follow.

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Example 6. Two mating spur gears have 80 and 240 teeth respectively. The pinion rotates at 1200 rpm and transmits a torque of 40 N-m. Calculate torque transmitted by gear.

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problems below: Prob. 1 Oil with\$\rho = 875\text{ kg/m}^3$\$ and \mu = 0.245\text{ kg/m.s}$ is flowing through a 1.5-cm-diameter horizontal pipe that discharges into the atmosphere at 90 kPa. The absolute pressure 15 m before the exit is measured to be 135 kPa. Determine the flow rate of oil through the pipe if the pipe. 15 m 135 kPa Oil 1.5 cm Prob. 2 Water at 20°C is to be pumped from a reservoir ($z_A = 2$ m) to another reservoir at a higher elevation ($z_B = 9$ m) through two 25-m-long plastic pipes connected in parallel. The diameters of the two pipes are 3 cm and 5 cm Water is to be pumped by a 68 percent efficient motor-pump unit that draws 7 kW of electric power during operation. The minor losses and the head loss in the pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rates through each of the parallel pipes. 25 m 3 cm Reservoir A $z_A = 2$ m Pump Reservoir B $z_B = 9$ m 5 cm

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