Numerade

Questions asked

BEST MATCH

Problem No 13 Air enters the compressor of an air-standard Brayton cycle at $p_1 = 100$ kPa, $T_1$ K, with a volumetric flow rate of $\dot{V}$ m³/s. The compressor pressure ratio is $p_2/p_1$. The turbine inlet temperature is $T_3$ K. Assuming, that the turbine and compressor each have an isentropic efficiency of 80%, determine: (a) the thermal efficiency of the cycle, (b) the back work ratio, (c) the net power developed, in kW $p_2/p_1 = 9.2$ $T_3 = 1400$ K $\dot{V} = 17$ m³/s

View Answer

BEST MATCH

Psy 101 describe three reason why we might not be able to recall information learned

View Answer

BEST MATCH

Problem 8. Using your knowledge of pKa's, determine whether the equilibrium favors reactants or products for the following reactions. Circle the side of the equilibrium that is favored. See next page for hints! a $NH_3 + OH^- \rightleftharpoons NH_2^- + H_2O$ b $NH_3 + MeCO_2H \rightleftharpoons NH_4^+ + MeCO_2^-$ c $EtO_2CCH_2CO_2Et + HC \equiv CPh \rightleftharpoons EtO_2CCH=CHCO_2Et + PhC \equiv C^-$ d $HF + H_2O \rightleftharpoons F^- + H_3O^+$ e $HF + Cl^- \rightleftharpoons F^- + HCl$ f $Me(CH_2)_4OH + NH_2^- \rightleftharpoons Me(CH_2)_4O^- + NH_3$ g $Me(CH_2)_4SH + MeCO_2^- \rightleftharpoons Me(CH_2)_4S^- + MeCO_2H$

View Answer

BEST MATCH

In arteries, slight changes in vascular tone (diameter/radius) cause very large changes in flow. True False

View Answer

BEST MATCH

Draw a structure using wedges and dashes for the following compound: Cl- Me HO Me. -H H

View Answer

BEST MATCH

A sensory stimulus alters the membrane permeability to ions in a specific sensory receptor. True ir false

View Answer

BEST MATCH

5. (20 puntos) Analíticamente, encuentra el valor RMS de una onda cuadrada $x(t)$ con amplitud de 1 volts y periodo de 0.2 segundos (Figura 3).

View Answer

BEST MATCH

Question 8 0.9 pts The complex ion, $ \left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+} $, has a maximum absorption near $ 580 \mathrm{~nm} $. Calculate the crystal field splitting energy (in $ \mathrm{kJ} / \mathrm{mol} $ ) for this ion. $ 206 \mathrm{~kJ} / \mathrm{mol} $ $ 114 \mathrm{~kJ} / \mathrm{mol} $ $ 292 \mathrm{~kJ} / \mathrm{mol} $ $ 343 \mathrm{~kJ} / \mathrm{mol} $ $ 485 \mathrm{~kJ} / \mathrm{mol} $

View Answer

BEST MATCH

Multiple Choice Question An interdisciplinary field focused on understanding and managing people at work is _____ O contingency perspective O vocational counseling O organizational behavior O credibility

View Answer

BEST MATCH

Para la matriz \begin{bmatrix} 3 & -3 & -6 \\ 8 & 3 & -6 \\ 4 & -1 & -7 \end{bmatrix} determine cada elemento (3, 1) de la matriz resultante de A despues de aplicarle: 1) R3 \leftarrow R3 - 3 R1: 2) R1 \leftrightarrow R2: 3) R3 \leftrightarrow R1: 4) R1 \leftarrow R1 - 3 R3: 5) R3 \leftarrow R1 - 3 R2:

View Answer

gabriel w.