Questions asked
21. The sacrum appears to be one bone. It used to be more. How many? a. 5 b. 12 c. 2 d. 3-4
Which atomic orbitals overlap to form the C-H σ bonding molecular orbitals of acetylene, C2H2? Select one: A. C 2p +H 1s B. C sp + H 1s C. C sp2 + H 1s D. C sp3 + H 1s
The Effective Force Constant of Two Springs. Two springs with the same unstretched length but different force constants k1 and k2 are attached to a block with mass m on a level, frictionless surface. • Calculate the effective force constants, keff , for scenarios (a), (b), and (c). The effective force constant ΣFx “ ́keff x. • An object with mass m, suspended from a uniform spring with a force constant k, vibrates with a frequency f1. When the spring is cut in half and the same object is suspended from one of the halves, the frequency is f2. What is the ratio f1{f2 ?
25 Multiple Choice 4 points A 21-year-old patient presents with a long history of amenorrhea (absence of monthly menstrual periods), acne, hyperpigmentation, and physical and mental fatigue. Laboratory values indicate: • hyperkalemia (high blood K+), • hypoglycemia (low blood glucose), and • hyponatremia (low blood Na+). What is the most likely cause of her symptoms? absence of androgen receptors primary hypercortisolism aldosterone synthase (P450aldo) deficiency an ACTH secreting tumor 21-hydroxylase (P450C21) deficiency
Vince often stays late at the office to interact with his attractive coworker, Anna. Based on this, which factor is most likely to predict Vince's likelihood for infidelity? Individual Relationship Context Genetics
Let $z_i = \begin{cases} 1 & \text{if investment alternative i is selected} \\ 0 & \text{otherwise} \end{cases}$ Max $4000x_1 + 6000x_2 + 10500x_3 + 4000x_4 + 8000x_5 + 3000x_6$ s.t. $1000x_1 + 2500x_2 + 6000x_3 + 2000x_4 + 5000x_5 + 1000x_6 \le 9000$ $1000x_1 + 3500x_2 + 4000x_3 + 1500x_4 + 1000x_5 + 500x_6 \le 11000$ $4000x_1 + 3500x_2 + 5000x_3 + 1800x_4 + 4000x_5 + 900x_6 \le 12000$ $1x_1 + 1x_2 + 0x_3 + 0x_4 + 0x_5 + 0x_6 \le 1$ $x_1, x_2, x_3, x_4, x_5, x_6 \in \{0, 1\}$ Alternative Selected Limited warehouse expansion 1 Extensive warehouse expansion 0 Test market new product 0 Advertising campaign 1 Basic research 1 Purchase new equipment 1 What is the optimal NPV? (b) Suppose that if the Advertising campaign is chosen, then the Test market new product alternative must be chosen. Modify your model from part (a) to take this into account and solve. Enter the constraint that should be added to the integer programming model in standard form. $0x_1 + 0x_2 + x_3 + 0x_4 + 0x_5 + 0x_6 \le 1$ What is the impact of this constraint on the optimal NPV in comparison to the optimal NPV from part (a)? The optimal NPV has not changed (c) Suppose the Extensive warehouse expansion must be chosen. Modify your formulation from part (b) to reflect this new situation and solve. Enter the constraint that should be added to the integer programming model in standard form. $0x_1 + 1x_2 + 0x_3 + 0x_4 + 0x_5 + 0x_6 = 1$ What is the impact of this constraint on the optimal NPV in comparison to the optimal NPV from part (a)? The optimal NPV has - Select your answer - by $
When using the RANDARRAY function, the integer argument needs to be to allow whole numbers.
If U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {2, 3, 5, 7} and B = {2, 4, 6, 7}, find the following. a. A \cap B b. A U B c. A’ d. B’
Do you see any potential (or actual) weaknesses in digital certificates that an attacker might exploit?
12. Write the full electron configuration, noble gas core(abbreviated) electron configuration, and orbital filling diagram, for the following elements. (The first one is done for you. a) Boron 1S$^2$ 2S$^2$ 2P$^1$ [He] 2S$^2$ 2P$^1$ b) Silicon c) Iodine (Use the noble gas core for the orbital filling diagram)