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

danielle c.

Divider

Questions asked

BEST MATCH

1. Each phase of a delta-connected load comprises a resistor of 50 $\Omega$ and capacitor of 50 $\mu$ F in series. Calculate (a) the line and phase currents (b) the total power and (c) the kilovoltamperes when the load is connected to a 440-V, 3-phase, 50-Hz supply. [(a) 9.46 A; 5.46 A (b) 4480 W (c) 7.24 kVA]

View Answer
 divider
BEST MATCH

Suppose that $X$ and $Y$ are independent random variables having the following joint probability distribution: | f(x, y) | | x | | | :------ | :-: | :-: | :-: | | | | 2 | 4 | | 1 | | 0.10 | 0.15 | | y | | | | | 3 | | 0.20 | 0.30 | | 5 | | 0.10 | 0.15 | Find: (a) $E(-2X+3Y)$ (b) $E(2XY)$

View Answer
 divider
BEST MATCH

Calculate the units of measure indicated by the problem. Order: infuse D5 0.9% NS 1,000 mL with 25,000 units of heparin IV at 35 mL/hr. Calculate the dosage in units/hr.

View Answer
 divider
BEST MATCH

Ethyl acetate is synthesized in a nonreacting solvent (not water) according to the following reaction: Acetic acid Ethanol Ethyl acetate For the following mixtures, will the concentration of increase, decrease, or remain the same as equilibrium is established? = 0.22 M, = 0.10 M, = 0.010 M, = 0.010 M decrease remain the same increase = 0.22 M, = 0.0020 M, = 0.0020 M,

View Answer
 divider
BEST MATCH

Which of the following represents a key performance indicator? Multiple Choice create high-quality products hire the best business professionals reduce product costs percentage of help-desk calls answered in the first minute

View Answer
 divider
BEST MATCH

In a study by Cahill and colleagues (2003), participants viewed emotionally arousing pictures and neutral pictures. The experimental group submerged their arm in ice water while viewing the pictures while the control group did not. Which of the following describes the findings of this study?

View Answer
 divider
BEST MATCH

Electric field with a magnitude of 300 N/C is in the positive z-direction. A loop with a shape of a square with a side of 50 cm is positioned in the xy-plane, such that the sides of the loop are parallel to the x- and y-axis. The loop is then turned by 45 degrees around the y-axis. What is the absolute value of the change of the electric flux through the loop (in SI units)?

View Answer
 divider
BEST MATCH

In the diagram below. a) Determine the emf of the battery. b) Determine the power dissipated in the battery's internal resistance. $R_1 = 10.0 \Omega$ $r = 0.80 \Omega$ $R_2 = 33.0 \Omega$ $R_3 = 50.0 \Omega$ $I = 0.14 A$ $R_4 = 68.0 \Omega$

View Answer
 divider
BEST MATCH

Question 4 [6 marks] A relief airplane is delivering a food package to a group of people stranded on a very small island. The island is too small for the plane to land on, and the only way to deliver the package is by dropping it. The airplane flies horizontally with constant speed of 100 m/S at an altitude of h=800 m. The positive x and y directions are defined in the figure. For all parts, assume that the \"island\" refers to the point at a distance D from the point at which the package is released, as shown in the figure. Ignore the height of this point above sea level. Assume that the free-fall acceleration is g = 9.80 m/s². a) After a package is dropped from the plane, how long will it take for it to reach sea level from the time it is dropped? Assume that the package, like the plane, has an initial velocity of 30 m/S in the horizontal direction. Express your answer numerically in seconds. Neglect air resistance. b) If the package is to land right on the island, at what horizontal distance D from the plane to the island should the package be released?

View Answer
 divider
BEST MATCH

A 71-year-old man from northern Minnesota is admitted to the hospital with complaints of severe fatigue, shortness of breath, "pounding heart," and numbness in his fingers. He first noticed the symptoms when setting up his lake shelter for ice fishing, as he does every year. Although he was mostly annoyed, his wife was concerned and made him go to the doctor. An automated CBC done at the doctor's office showed a hemoglobin value of 7.8 g/dL and hematocrit of 23.5%. His doctor has ordered a bone marrow biopsy, a type and crossmatch for 3 units of packed red blood cells, and a direct Coombs' test. A sample of his blood is drawn and sent to the blood bank for the crossmatch and DAT.

View Answer
 divider