Ace - AI Tutor
Ask Our Educators
Textbooks
My Library
Flashcards
Scribe - AI Notes
Notes & Exams
Download App
stephanie s-ez

stephanie s.

Divider

Questions asked

BEST MATCH

Most people succeed in behavior change when they try to modify several behaviors at the same time. True False

View Answer
divider
BEST MATCH

There are nine essential amino acids that _____. ☐ must be consumed as part of our diet ☐ cannot be produced by the body ☐ can be produced by the body ☐ do not need to be produced by the body

View Answer
divider
BEST MATCH

You have a patient who tells you they difficulty swallowing pills and has the tendency to get constipation. Which over the counter (OTC) calcium supplement would you recommend? Calcium citrate Calcium gluconate Calcium carbonate Calcium lactate

View Answer
divider
BEST MATCH

Balance the following in an acid & a base \\ & then calculate $\Delta G$ & $\Delta G$ for the \\ reaction: \\ $O_2 + Ba \rightarrow H_2O + Ba^{2+}$

View Answer
divider
BEST MATCH

The _________blank is composed of multiple structures that collaboratively process and contribute to the experience of emotions. Multiple Choice hypothalamus cerebellar peduncle medulla oblongata cerebellum limbic system

View Answer
divider
BEST MATCH

Problem 1: Performance Measures We want to design a controller, G_(c)(s), for the system shown in the block diagram below with G(s)=(10)/(s(s+10)). Before we start our design, we want to explore the performance of the system without the controller. Before the design: a) Plot the root locus of this system. For what values of K is this system stable? b) What are the values of the poles of the uncompensated closed-loop system? c) Plot the step response of the closed-loop system. What are the values of T_(r),T_(p),T_(s), P.O., e_(ss), if applicable? d) Plot the frequency response of the uncompensated system. What are the values of M_(p_(omega )),omega _(r),omega _(c),P.M, G.M., and omega _(b), if applicable? Comment on the value of P.M., is it a good value? e) What is a good reason for designing a compensator for this system? Start the design with a constant gain compensator, i.e. G_(c)(s)=K. f) What value of K yields a phase margin of P.M. =50deg . Repeat parts (b), (c), and (d) for this value of K. g) What improved in the performance of the system with the constant G_(c)(s) ? Design a phase-lead compensator that satisfies P.M. =50deg . h) Repeat parts (b), (c), and (d) for the resulting closed-loop feedback system. i) How did the phase-lead compensator improve the performance of the system? j) Summarize the results obtained in this problem by plotting the step-response of the three different situa- tions on one plot and tabulating the corresponding performance measures. Problem 1: Performance Measures R(s) G.(s) G(s) >Y(s) Before we start our design, we want to explore the performance of the system without the controller. Before the design: a) Plot the root locus of this system. For what values of K is this system stable? b) What are the values of the poles of the uncompensated closed-loop system? c) Plot the step response of the closed-loop system. What are the values of T., Tp, Ts, P.O., ess, if applicable? d) Plot the frequency response of the uncompensated system. What are the values of Mp., r, e, P.M. G.M., and b, if applicable? Comment on the value of P.M., is it a good value? e) What is a good reason for designing a compensator for this system? Start the design with a constant gain compensator,i.e. G.s)= K. f) What value of K yields a phase margin of P.M. = 50. Repeat parts (b), (c), and (d) for this value of K g) What improved in the performance of the system with the constant G.(s)? Design a phase-lead compensator that satisfies P.M. = 50. h) Repeat parts (b), (c), and (d) for the resulting closed-loop feedback system. i) How did the phase-lead compensator improve the performance of the system? j) Summarize the results obtained in this problem by plotting the step-response of the three different situa. tions on one plot and tabulating the corresponding performance measures.

View Answer
divider
BEST MATCH

Problem set #9 Problem 17 Express the fractional change, \deltaE/E, of the photon energy in the Compton effect in terms of the angle, \theta, of the scattered photon and the wavelength, \lambda, of incident photon. Problem 18 Assume that potential energy for an electron in a hydrogen atom is not $-e^2/r$ but $U(r) = -\alpha/r^2$. Within the Bohr's theory find the quantized energies, $E_n$, of the bound states corresponding to circular orbits.

View Answer
divider
BEST MATCH

On March 30, Century Link received an invoice dated March 28 from ACME Manufacturing for 50 televisions at a cost of $150 each. Century received a 10/5/2 chain discount. Shipping terms were FOB shipping point. ACME prepaid the $80 freight. Terms were 4/10 EOM. When Century received the goods, 2 sets were defective. Century returned these sets to ACME. On April 8, Century sent a $205 partial payment. Century will pay the balance on May 6. What is Century's final payment on May 6? Assume no taxes. Note: Do not round intermediate calculations. Round your answer to the nearest cent. Final payment

View Answer
divider
BEST MATCH

In Machine Learning, a computer program is said to learn from experience E with respect to some class of tasks T and performance measure P if its performance at tasks in T, as measured by P, improves with experience E. Machine Learning has been applied to predict whether credit card transactions are fraudulent or legitimate. In this case, "The database of credit card transactions that are labeled as actually fraudulent or not" is __________ and "Percentage of transactions correctly predicted" is __________. Group of answer choices: E; P P; E E; T T; P P; T

View Answer
divider
BEST MATCH

Antitrust laws in the United States Question 10 options: A. are the same as the laws in the European Union. B. are not necessary in the twenty-first century. C. have not been used in the past twenty-five years. D. are an attempt to foster competition.

View Answer
divider