Numerade

Questions asked

BEST MATCH

1) 380/220 Volt Y connected Induction motor has below Characteristics. Mechanical and iron losses are ignored. All impedances are referred to stator. $R_s = 0.3$ $X_s = 0.6$ $R_r = 0.2$ $X_r = 0.4$ $S = 0.02$ $P = 4$ $f = 50$ $X_m = 15$ a) find the line current b) find out torque c) find max or pull out torque d) find start torque.

View Answer

BEST MATCH

How many neutrons are in the nucleus of an atom of O?

View Answer

BEST MATCH

is accuracy of the graduated cylinder better or worse when compared to the beaker and erlenmeyer flask? do the graduation marks on each piece of equipment verify this feature?

View Answer

BEST MATCH

The figure gives the magnitude of the electric field inside and outside a sphere with a uniformly distributed positive charge. What is the charge (in C) on the sphere? $E_m = 1.10 \times 10^8$ N/C, R = 3.00 cm $E_m$ R r 8.25 × 10-5 2.12 × 10-5 4.03 × 105 1.10 x 10-5

View Answer

BEST MATCH

Jack has a ticket to see Post Malone for which he paid $30 yesterday. He takes an unpaid day off from work to get ready for the concert. When he arrives at the concert, five different people offer him $70 for his ticket. Jack decides to keep his ticket. At the time he makes this decision, his opportunity cost of seeing Post Malone is Select one: a. $70. b. $70 plus his forgone earnings. c. $40. d. $30 plus his forgone earnings.

View Answer

BEST MATCH

Question 5 5 pts You have invested $1,000,000 in a certain firm's bonds. You estimate that the default probability of those bonds is 52%. Also, if default happens, you expect the recovery rate to be about 48%. What is your expected loss on this bond? Enter your answer as a percentage, without the percent sign ('%'), and rounded to 2 decimals. For example, if your answer is 0.12345678, that's equivalent to 12.345678%, so just enter 12.35

View Answer

BEST MATCH

Schematically show how the diffraction peaks from a copper specimen (fcc, a=0.3615 nm) shift in their angular positions if Mo KÎ± = 0.0711 nm, Cu KÎ± = 0.1542 nm, and Cr KÎ± = 0.2291 nm radiations are used to record the diffraction patterns.

View Answer

BEST MATCH

1. True or False. If false, Why? In electrical engineering, admittance is a measure of how easily a circuit or device will allow a current to flow. 2. True or False. If false, Why? Capacitances is defined as the reciprocal of impedance. 3. True or False. If false, Why? Nodal representation of the power transmission network is developed, and the Incorporation of mutually coupled branches into Y bus can be handled by the building-block approach described here. Modifications to Y bus to reflect network changes are thereby facilitated. 4. True or False. If false, Why? Gaussian elimination offers an alternative to matrix inversion for solving large-scale power systems, and triangular factorization of Y bus enhances computational efficiency and reduces computer memory requirements, especially when the network matrices are not symmetric. 5. True or False. If false, Why? A fault in a circuit is any failure which interferes with the normal flow of current. Most faults on transmission lines of 1 15 kV and higher are caused by lightning, which results in the flash over of insulators. The high voltage between a conductor and the grounded supporting tower cause ionization, which provides a path to ground for the charge induced by the lightning stroke.

View Answer

BEST MATCH

2. Simplify the following Boolean functions, using four-variable k-maps. ( a) F(A, B, C, D) = ?(2, 3, 6, 7, 12, 13, 14) b) F(w, x, y, z) = ?(1, 3, 4, 5, 6, 7, 9, 11, 13, 15) 3. Simplify the following Boolean expression, using four-variable k-maps. a) F(A, B, C, D) = A'B'C'D + AB'D + A'BC' + ABCD + AB'C b) F(A, B, C, D) = A'B'C'D' + BC'D + ACD + A'BCD +ACD'

View Answer

BEST MATCH

Draw the major organic product of the Bronsted acid-base reaction. Include all lone pairs and charges as appropriate. Ignore any counterions. NaOH Select to Draw Question 52 of 120

View Answer

josefina a.