Questions asked
A wax is an example of a hydrolyzable lipid. The presence of what kind of functional group determines this classification? Question 12Select one: a. amide b. hemiketal c. hemiacetal d. alcohol e. alkene f. acetal g. carboxylic ester h. ketal
A rock is thrown directly up with an initial velocity of $v_{oy} = 21, 1 m/s$ at instant A as shown in the figure below. As it moves up it will reach a certain height $h = 8,5 m$ at an instant B. It come back to the same height during it's fall from the maximum height at instant C. Determine the time it takes for the rock to go from B to C. Express your answer using one decimal place in units of seconds and take $g = 9.81 m/s^2$.
Review 1. The Benedict's test detects glucose, the building block of starch, yet it does not detect starch. Explain.
The mode of the following data is Apple. Bar graph: - Y-axis: Frequency (1 to 10) - X-axis: Fruit (Pear, Apple, Peach, Orange, Cherry) Frequency data from the graph: - Pear: 4 - Apple: 9 - Peach: 7 - Orange: 5 - Cherry: 2
Which theory brings in the impact of the justice system on individuals’ offending? Which theory brings in the impact of the justice system on individuals’ offending? Social bond theory Social disorganization theory Labeling theory Self-control theory
3. For a galvanic cell consisting of a nickel electrode in contact with a solution of Ni$^{2+}$$_{(aq)}$ ions, and a silver electrode in contact with a solution of Ag$^{+}_{(aq)}$ ions: a. Determine the anode and cathode and write the half reactions (2 points) b. Calculate the standard cell potential (2 points) c. Write the shorthand cell notation (1 point)
ln(5.76x) = 0.73(0.98 - 0.13)
7. Vanishing transport in filled bands Consider a periodic function $f(\vec{r}) = f(\vec{r} + \vec{R})$ where $\vec{R}$ is a lattice vector of the Bravais lattice. Show that $\int_C d^3r \nabla f(\vec{r}) = 0$ (9) for any primitive cell C. Use this to show that the electric and energy current densities $\vec{j}$ and $\vec{j}_e$ for a completely filled band vanish.
X-rays with wavelengths of 0.7 nm are detected at a scattering angle of \theta in a Compton-scattering experiment, as shown in the drawing. What is the scattering angle \theta if the energy of the scattered photon is 5.111 keV. (For accuracy, use $h = 6.626 \times 10^{-34} \text{ J\cdot s}$ and $c = 2.998 \times 10^8 \text{ m/s}$.) Answer: \boxed{\text{degrees}}
Question 1 0.5 / 1 pts Consider the following graphs. A B C D Match each graph with the most likely correlation coefficient. A 1.4 B 0.5 C 0 D -0.98
