.<br> What happens to the average kinetic energy of water molecules as water freezes?

The coloring of the blue morpho butterfly is protective. As the butterfly flaps its wings, the angle at which light strikes the

timurjin [86]

Answer:

D. As the angle changes, the differences in paths among light reflected from different surfaces change, resulting in constructive interference for a different color.

Explanation:

The color of body of butterfly is not due to pigment . It is due to optical effect called interference . The same phenomenon is responsible for coloration of films of oil on water or soap bubble etc. Here interference is caused by multiple slits . As the angle changes, the differences in paths among light reflected from different surfaces change, resulting in constructive interference for a different color.

8 0

3 years ago

How many ways or features that allow us to know if something is living or non living?

Ivenika [448]

Well sometimes you know if it's alive if it's moving or we'll skip that. Cells are the smallest unit of life they are made up cells, and blood powers those. So feel the temperature and pulse rate and that will give you an idea of wither or not it is alive.

3 0

3 years ago

A capacitance C and an inductance L are operated at the same angular frequency.

PIT_PIT [208]

Answer:

(B) 7279.70 rad/sec (C) $X_L=37.1265\ ohm\ and \ X_C=37.1265\ ohm$

Explanation:

We have given $L=5.10mH$ and $C=3.70\mu F$

(B) The angular frequency is denoted as $\omega$ whose value is given by $\omega =\frac{1}{\sqrt{LC}}=\frac{1}{\sqrt{5.10\times 10^{-3}\times 3.70\times 10^{-6}}}=7279.70\ rad/sec$

(C) The inductive reactance $X_L=\omega L=7279.70\times 5.10\times 10^{-3}=37.1265\ ohm$

Capacitive reactance $X_C=\frac{1}{\omega C}=\frac{1}{7279.70\times 3.70\times 10^{-6}}=37.1265\ ohm$

6 0

2 years ago

which type of precipitation would likely be falling from cumulus clouds with a ground air temperature of 14 degree c .. A) snow.

seraphim [82]

The type of precipitation that would likely be falling from cumulus clouds with a ground air temperature of 14 degree Celsius is rain. The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

8 0

3 years ago

Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant

ziro4ka [17]

Answer:

25 m/s

Explanation:

from the question you van see that some detail is missing, however i found this same question using internet search engines on: 'https://www.chegg.com/homework-help/questions-and-answers/light-rail-passenger-trains-provide-transportation-within-cities-speed-slow-nearly-constan-q5808369'

here is the complete question:

'Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant (and quite modest) acceleration. A train travels through a congested part of town at 7.0m/s . Once free of this area, it speeds up to 12m/s in 8.0 s. At the edge of town, the driver again accelerates, with the same acceleration, for another 16 s to reach a higher cruising speed. What is the final Speed?'

SOLUTION

initial speed (u) = 7 m/s

final speed (v) = 13 m/s

initial acceleration time (t1) = 8 s

final acceleration time (t2) = 16 s

what is the higher cruising speed?

acceleration = $\frac{final speed (v) - initial speed(u)}{time (t1)}$

acceleration = $\frac{13-7}{8}$ = 0.75 m/s^{2}

since the train accelerates at the same rate, the increase in speed will be = acceleration x time (t2)

= 0.75 x 16 = 12 m/s

therefore the higher cruising speed = increase in speed + initial speed

= 12 + 13 = 25 m/s

4 0

3 years ago

. What happens to the average kinetic energy of water molecules as water freezes?