Numerade

Questions asked

BEST MATCH

Simplify: (-2)^(2)xy^(0)z^(3) ? Simplify: $(-2)^2xy^0z^3$ X $\div$ $\pi$ $\frac{a}{b}$ $a^b$ $a_b$ () ?

BEST MATCH

etermine the structure of the compound and give it's systematic name. Please type the systematic name here. MS: Molecular ion peak (M) = 123 and (M+2) = 125. The relative abundance for (M) and (M+2) are 52% and 48% respectively. 13C-NMR: three signals

View Answer

BEST MATCH

Witnesses estimate the iceberg's visible volume at 5 x 105 ft3 (medium-sized according to the International Ice Patrol). Given this information and the information in Question 1, what was the total volume of the iceberg? Give your answer in ft3 and omit commas. Please do not express your answer in scientific notation.

View Answer

BEST MATCH

at t=0 the particles velocity is 7.5 m/s what is the velocity at t=9s

View Answer

BEST MATCH

2. Let $z = u^3 + 3uv^2$, where $u = x + 2y$ and $v = 2xy$. (a) Find $\frac{\partial z}{\partial x}$ and $\frac{\partial z}{\partial y}$ using the Chain Rule. (b) Confirm your answer by direct substitution.

View Answer

BEST MATCH

Qn 4. (a)(i) Define what is meant by \{ A \stackrel{u_i}{\longrightarrow} B_i \}_{i \in I} is a monomorphic family of arrows in a category A. (ii) Give a specific example to show that the members of a monomorphic family, in a given category, need not be monomorphisms. [3, 8] (b) Let P: Set \longrightarrow Set be the contravariant power set functor. Then prove the following: (i) P is faithful but not full. (ii) P reflects isomorphisms. [8, 7] (c) Demonstrate that in the category Cat of small categories, monomorphisms are faithful functors. [10]

View Answer

BEST MATCH

QUESTION 67 From the list below select the right Linux command to clean at low level all data in a USB flash drive. dd if=/dev/null | pv | dd of=/dev/sdb1 dd if=/dev/zero | pv | dd of=/dev/sdb1 clean /dev/sdb1 dd if=/dev/null of=/dev/sdb

View Answer

BEST MATCH

1. Consider the digital logic circuit given below. A B C Gate Delay NOT 9 ns 2-input AND 13 ns Y 2-input OR 11 ns 2-input XOR 23 ns 2-input NAND 12 ns 2-input NOR 10 ns (a) Determine the critical path delay for the circuit. Use the gate delays specified in the table. (b) Identify the critical path by its input, output, and the gates in the path.

View Answer

BEST MATCH

1. What are the main stages of fatigue failure? 2. What is main difference between Alternating load and Fluctuating load?

View Answer

BEST MATCH

Problem 8: Every newborn dragonfly is gifted with a natural water propulsion system that helps it propel by ejecting water from their body using fundamental conservation principles. At the rear end of their bodies, is an opening similar to that shown in the figure, which can be approximated as a spherical sector. The flow leaving the body follows a radially outward direction with an exit velocity $V_e$. Calculate the initial thrust gained by a dragonfly from the water ejection as a function of the geometric parameters and $V_e$. Compare this result with the approximation used in jet propulsion systems: $T = \dot{m}V_e$, where $\dot{m}$ is the mass flow rate and $V_e$ is the exit velocity magnitude. Plot the percent error versus $\alpha$ for $0 < \alpha < 22.5$. (Ignore unsteady and viscous effects. The figure shown below is radially symmetric.)

View Answer

holly c.