Numerade

Questions asked

BEST MATCH

Classify each of the following acids as weak or strong, based on the information given: * Hydrobromic acid (HBr, $K_A = 1 \times 10^9$) is a [Select] * Sulfurous Acid ($H_2SO_3$, $K_A = 1 \times 10^{-2}$) is a [Select] * Hydroiodic acid (HI, $K_A = 3.2 \times 10^9$) is a [Select]

View Answer

BEST MATCH

The contribution margin per unit is the price at which a unit must be sold in order for the company to break even. True or False True False

View Answer

BEST MATCH

A woman enters the emergency room with stomach pain. She undergoes a CT scan and is diagnosed with an abdominal aortic aneurysm, a weakening in the wall of the aorta, which causes it to stretch and bulge. The physicians inform her that the only way to fix the problem is surgically, and that the chances of survival are about 50/50. They also inform her that time is of the essence, and that should the aneurysm burst, she would be dead in a few short minutes. The woman is an erotic dancer; she worries that the surgery will leave a scar that will negatively affect her work; therefore, she refuses any surgical treatment. Even after much pressuring from the physicians, she adamantly refuses surgery. Feeling that the woman is not in her correct state of mind and knowing that time is of the essence; the surgeons decide to perform the procedure without consent. They anesthetize her and surgically repair the aneurysm. She survives, and sues the hospital for millions of dollars. Questions:  What are the medical indication, patient preferences, quality of life, and contextual features (4 Pillars of Ethical Case Analysis) 0f this case?  What ethical and/or legal principles, as well as legislation and case law that are relevant to the "Case of the Dancer"?  Do you believe that the physician's actions can be justified? Why or why not based on what you have read from the lecture notes and Pozgar readings?  Is there anything else that they could have done differently?

View Answer

BEST MATCH

Giving a child a sticker every time they do their homework is an example of negative reinforcement. True False

View Answer

BEST MATCH

Identify an example of a progressive tax in the United States. O a. The personal income tax O b. The property tax O c. The excise tax O d. The customs duty

View Answer

BEST MATCH

The data set below shows the number of cars that parked in the restaurant parking lot. Identify the five-number summary for the following data set. Is the data set discrete or continuous? 5 42 83 55 69 45 24 12 18 60 57 49 The 5-number summary is (Use ascending order. Type integers or decimals.) Is the data set set discrete or continous? A. Continous B. Discrete

View Answer

BEST MATCH

17. 3284 25 lb 10 lb 24° EF14 10:27:57 (bduk 44 lb Part Description A. Determine the magnitude of the acceleration of the 44 lb cart. (include units with answer) Answer Save Status 16.3 ft/s^2 3.92 pts.98% Format Check Try 2 - your answer of 16.3 ft/s^2 is not correct. 1% try penalty #tries: 2 Show Details 15 try limit

View Answer

BEST MATCH

Reported income/profit for the year ended December 31, 2020 Overstatement of opening inventory at January 1, 2019. 1. Overstatement of reported income/profit for the year ended December 31, 2020. Understatement of ending inventory by the same amount at January 1, 2020 and December 31, 2020. 2. Understatement of reported income/profit for the year ended December 31, 2020. Overstatement of ending inventory at December 31, 2020. 3. No effect on reported income/profit for the year ended December 31, 2020. Overstatement of opening inventory at January 1, 2020. Question 3 (3 points) On July 1, year 1, ABC Ltd. purchased a piece of equipment for $500,000 plus installation costs of $45,000 that were necessary to make the equipment operational. ABC Ltd. has a December 31 fiscal year end and uses the straight-line depreciation method. The piece of equipment is expected to have a useful life of 18 years, at which time it will have a residual value of $60,000. What is the book value of the equipment as of December 31, year 3? Round your answer to the nearest dollar. Your Answer: Answer Question 4 (2 points) On January 1, year 1, ABC Ltd. purchased a piece of equipment with a cost of $150,000. The equipment has a useful life of 15 years and a residual value of $15,000 and is being depreciated under the straight-line method. The equipment was sold on July 1, year 3, for $50,000. Calculate the gain or loss on disposal. If the amount is a gain, enter the answer as a positive amount below (i.e. 20,000). If the amount is a loss, enter the answer as a negative amount below (i.e. -20,000). Your Answer: Question 5 (2 points) Mustang Crushers Ltd. has crushing equipment with a cost of $468,000. The equipment is estimated to last 18 years and to crush an estimated 176,000 units during its lifetime, at which time it will have an estimated residual value of $52,000. It is to be depreciated using the units of production depreciation method. During the current year, 35,600 units were crushed. Calculate depreciation expense for the crushing equipment for the current year. Round your answer to the nearest dollar.

View Answer

BEST MATCH

uestion No.4 (CLO 1,2) (10 marks) epetitive Control refers to a class of control methods used to compensate for periodic disturbances or eriodic reference inputs. One such system is shown below. \frac{s+K}{2} \frac{1}{s+4} R E Y \frac{1}{s+1} a. Find the input-to-output transfer function $T(s) = \frac{Y(s)}{R(s)}$ b. Find the input-to-error transfer function $T_e(s) = \frac{E(s)}{R(s)}$ c. Assuming the closed-loop system is stable, show that the steady-state error, $e_\infty = \lim_{t \to \infty} e(t)$, is zero, if $R(s) = \frac{as+b}{s^2+2^2}$, i.e., the reference input is a sinusoid with frequency 2.

View Answer

BEST MATCH

A real vapor compression heat pump system, illustrated in Figure 5 below, has a heating capacity of 70,000 Btu/h, and uses 134a as the refrigerant working fluid. The working fluid enters the compressor (State 1) as saturated vapor at a temperature of 20.0°F. The refrigerant exits the compressor (State 2) as a superheated vapor at 180 psi and temperature of 200°F. The refrigerant exists the condenser as a saturated liquid at 115°F. To receive full credit you must include units in your computations. $T_3 = 115°F$ $\dot{Q}_{out} = 70,000 \text{ Btu/h}$ 3 Condenser 180 lbf/in.$^2$ 2 4 Expansion Valve Evaporator $Q_{in}$ Figure 5 $T_2 = 200°F$ $W_c$ Compressor Saturated Vapor 1 Determine the following: (5 points each) a) The mass flow rate of the refrigerant, in lb/min. b) The compressor power input, in horsepower. c) The quality, x, and the temperature $T_4$ in °F at State 4. d) The real isentropic compressor efficiency. e) The coefficient of performance. f) Clearly illustrate this cycle on a T-s diagram with approximate locations for each state and the approximate corresponding temperatures and pressures. (Note: poorly, cryptically, or carelessly drawn T-s diagram representations will not be graded.)

View Answer

noah a.