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Emily Himsel verified

Numerade educator

Microorganisms can thrive under many different conditions, including high-temperature environments such as hot springs. To function properly, cell membranes have to be in a fluid state. How do you expect the fatty acid content (saturated versus unsaturated) of bacteria living in high-temperature environments might compare with that of bacteria living in more moderate temperatures?

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Paul Gabriel verified

Numerade educator

A monkey is chained to a stake in the ground. The stake is 3.00 $\mathrm{m}$ from a vertical pole, and the chain is 3.40 $\mathrm{m}$ long. How high can the monkey climb up the pole?

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Eduard Sanchez verified

Numerade educator

An experimenter adds 970 J of heat to 1.75 mol of an ideal gas to heat it from 10.0$^\circ$C to 25.0$^\circ$C at constant pressure. The gas does +223 J of work during the expansion. (a) Calculate the change in internal energy of the gas. (b) Calculate $_\Upsilon$ for the gas.

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INSTANT ANSWER

In Fig. $30-63$ , the inductor has 25 turns and the ideal battery has an emf of 16 $\mathrm{V}$ . Figure $30-64$ gives the magnetic flux $\Phi$ through each turn versus the current $i$ through the inductor. The vertical axis scale is set by $\Phi_{s}=4.0 \times 10^{-4} \mathrm{T} \cdot \mathrm{m}^{2},$ and the horizontal axis scale is set by $i_{s}=2.00 \mathrm{A}$ . If switch $\mathrm{S}$ is closed at time $t=0,$ at what rate $di/dt$ will the current be changing at $t=1.5 \tau_{L} ?$

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Christopher Nilsen verified

Numerade educator

When the sum $4.9965+2.11+3.887$ is calculated, to how many decimal places should the answer be reported? You should not need to perform the calculation.

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Umar Sohail Qureshi verified

Numerade educator

You connect a battery, resistor, and capacitor as in Fig. 26.20a, where $R =$ 12.0 $\Omega$ and $C =$ 5.00 $\times$ 10$^{-6}$ F. The switch $S$ is closed at $t =$ 0. When the current in the circuit has magnitude 3.00 A, the charge on the capacitor is 40.0 $\times$ 10$^{-6}$ C. (a) What is the emf of the battery? (b) At what time t after the switch is closed is the charge on the capacitor equal to 40.0 $\times$ 10$^{-6}$ C? (c) When the current has magnitude 3.00 A, at what rate is energy being (i) stored in the capacitor, (ii) supplied by the battery?

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Stephen Ho verified

Numerade educator

The [CrCl6]3- ion has a maximum absorbance in its absorption spectrum at 735 nm. Calculate the crystal field splitting energy (in kJ>mol) for this ion.

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INSTANT ANSWER

Which of the following best describes the logic of scientific inquiry? a. If I generate a testable hypothesis, my experiments will support it. b. If my prediction is correct, it will lead to a testable hypothesis. c. If my observations are accurate, they will support my hypothesis. d. If my hypothesis is correct, I can expect certain test results.

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Leon Druch verified

Numerade educator

In Exercises $1-8,$ describe how the graph of $y=x^{2}$ can be transformed to the graph of the given equation. $$ y=(x-1)^{2}+3 $$

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INSTANT ANSWER

Let $A=\left[\begin{array}{rrr}{2} & {0} & {6} \\ {-1} & {8} & {5} \\ {1} & {-2} & {1}\end{array}\right],$ let $\mathbf{b}=\left[\begin{array}{r}{10} \\ {3} \\ {3}\end{array}\right],$ and let $W$ be the set of all linear combinations of the columns of $A .$ a. Is $\mathbf{b}$ in $W ?$ b. Show that the third column of $A$ is in $W .$

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