Ace - AI Tutor
Ask Our Educators
Textbooks
My Library
Flashcards
Scribe - AI Notes
Notes & Exams
Download App
katherine johnson

katherine j.

Divider

Questions asked

BEST MATCH

the subcutaneous layer of the skin is q to the dermis and epidermis

View Answer
divider
BEST MATCH

Questions 1-4 follow a common storyline. In the 1800s, two isolated farmers on the south side of the Brazos raise steers and corn on their land. Every year, Farmer A produces 144 thousand bushels of corn and 16 steers, i.e., $(\omega_c^A, \omega_s^A) = (144, 16)$, while Farmer B produces 64 thousand bushels of corn and 36 steers, i.e., $(\omega_c^B, \omega_s^B) = (64, 36)$. Being isolated, the farmers would like to better their situations by trading among themselves. For Questions 1-3, we are in 1870, where both farmers have the Cobb-Douglas preferences, $u(c, s) = cs$, where $c$ is thousands of bushels of corn and $s$ is number of steers. 1. Which of the following must be true of a Pareto-efficient split of the aggregate endowment, $\omega_{AGG} = (208, 52)$? a. Both farmers end up with identical bundles of steers and corn, i.e., $(s^A, c^A) = (s^B, c^B)$. b. For every steer Farmer A ends up with, he also ends up with 1 thousand bushels of corn, i.e., $c^A/s^A = 1$. c. For every steer Farmer B ends up with, he also ends up with 4 thousand bushels of corn, i.e., $c^B/s^B = 4$. d. Farmer B ends up with more corn than Farmer A, i.e., $c^B > c^A$. e. None of the other options are correct.

View Answer
divider
BEST MATCH

The spring in a pinball machine has a spring constant \( k \) of \( 2,130 \frac{\mathrm{~N}}{\mathrm{~m}} \). What is the magnitude of the force required to compress this spring 4.5 cm ? Write your answer using two significant figures. \( \square \) N

View Answer
divider
BEST MATCH

At a construction site, a cement slurry with a density of 2.56 g/ml passes through a pumping station where it is raised vertically by 5.22 m at the rate of 1,880,000 liters per day. The liquid enters and leaves the pumping station at the same speed and through pipes of equal diameter. (a) Determine the output mechanical power (in W) of the lift station. Ignore any energy loss due to friction. 2840.44 Correct: Your answer is correct. W (b) Assume an electric motor continuously operating with average power 3.80 kW runs the pump. Find its efficiency. Incorrect: Your answer is incorrect. In this case, the efficiency gives information about the mechanical power output for the electrical power input. If the output is equal to the input, the efficiency is one. We expect the efficiency to be less than one. Note the difference between efficiency and percent efficiency.

View Answer
divider
BEST MATCH

750mg in 100 ml given over 30 minutes what is the infusion rate?

View Answer
divider
BEST MATCH

Johny Danger is a risk averter who tries to maximise the expected value of \( \sqrt{w} \), where \( w \) is his wealth. Johny has \( £ 200,000 \) in safe assets and he also owns a car worth \( £ 100,000 \). But Johny is careless and leaves the top down and the keys in the ignition. Consequently, his car will be stolen with probability 0.5 . If it is stolen, he will never get it back. a) (5 marks) Calculate Johny's expected utility if he doesn't buy car theft insurance. b) (5 marks) Calculate the certainty equivalent of the lottery he faces if he doesn't buy car theft insurance. c) (5 marks) Suppose that Johny can buy \( £ \mathrm{~K} \) worth of insurance at a cost of 0.2 K . How much insurance will Tom buy? (use notation Cs for consumption if the car is stolen and \( C_{\text {NS }} \) for consumption if the car is not stolen. d) (5 marks) Suppose that Johny can buy \( £ \mathrm{~K} \) worth of insurance at a cost of 0.5 K . How much insurance will Johny buy? e) (5 marks) Calculate the certainty equivalent of the lottery Johny faces if his utility function changed to \( \ln (w) \), where \( w \) is his wealth.

View Answer
divider
BEST MATCH

Which of the following is not part of one’s sexuality? Their gender identity Their romantic attraction Their emotional attraction Their identity

View Answer
divider
BEST MATCH

True or False: The process of a sperm penetrating an egg is called metaphase.

View Answer
divider
BEST MATCH

Indicate whether the following statement is true or false? If A is a matrix, then the dimension of the row space of A is equal to the dimension of the column space of A. O True O False

View Answer
divider
BEST MATCH

The Republic of Fredonia is purchasing new equipment for its fire department, to include two new fire tracks and an ambulance. Vendor A costs less upfront, but will not last as long and costs more to maintain. Vendor B is more expensive to acquire but has a less expensive maintenance contract and a longer operating life. Follow the steps below to compare to relative costs of the two options using the annualized cost method. Assumptions: Vendor A will supply equipment at an upfront cost of $1.4 million, with an annual maintenance contract of $12,000. The equipment is expected to last 20 years. The equipment from Vendor B will cost $1.8 million, and will require maintenance at a contracted cost of $8000 per year. This equipment will have a 30-year operating life. Assume a 6 percent discount rate. A. Use Excel to calculate the present cost of the two options. The formula is to add PV of the contracted maintenance costs to the acquisition cost, assumed to happen in T0. B. Use the PMT function in excel to calculate the annualized cost of each contract, with the respective operating lives and a 6 percent discount rate.

View Answer
divider