3 years ago

Pastel consists of pigment bound with a ______ binder.

Biology

2 answers:

belka [17]3 years ago

8 0

C non-greasy awegryyyyyyyyyyyyy

Sedbober [7]3 years ago

4 0

The correct answer is c

You might be interested in

What happens as humans use more land for development<br>

Lina20 [59]

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

4 0

3 years ago

Read 2 more answers

While caring for an infant receiving vitamin supplements, the nurse observes symptoms of exophthalmos in the infant. what is the

Damm [24]

You should have typed the question on Google instead of here

8 0

3 years ago

An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num

Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, $I_{min}$ = $5\times 10^{-13} W/m^{2}$

Pupil has a diameter, d = 8.5 mm

= 8.5 x $10^{-3}$ m

Radius of the eye, r = 4.25 x $10^{-3}$ m

∴ Area of the eye, A = $\pi .r^{2}$

= $3.14\times \left ( 4.25\times 10^{-3} \right )^{2}$

= $5.6\times 10^{-5} m^{2}$

Let $P_{min}$ be the minimum number of photons.

Therefore, $P_{min}$ = $I_{min}$ x A

= $5\times 10^{-13}$ x $5.6\times 10^{-5}$

= $2.8\times 10^{-17}$ W

Thus the minimum number of photons is given by

$N_{min}=P_{min}/E$

where E = $hc/\lambda$

= $\left (6.63\times 10^{-34}\times 3\times 10^{8} \right )/548\times 10^{-9}$

= $3.62\times 10^{-19} J$

Therefore, $N_{min}$ = $\frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}$

= 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

4 0

3 years ago

Henry wanted to know how fast his pet tortoise could walk.

Annette [7]

Answer:

2 meters

Explanation:

on the table, the number to the left of 24 is 2, showing its 2 meters in 24 seconds

3 0

3 years ago

Scientists have been able to inject the firefly's lighting gene into a tobacco plant, allowing it to glow. Which type of organis

olga nikolaevna [1]

This tobacco plant is an example of a genetically modified organism.

3 0

3 years ago