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svlad2 [7]
2 years ago
7

Which type of energy uses the photoelectric effect?

Chemistry
1 answer:
ikadub [295]2 years ago
8 0

Answer:

My lovely people the answer is SOLAR

Explanation:

i just know

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Rank the speeds of sound through these materials, from greatest to least:a. Airb. Steelc. Water
s344n2d4d5 [400]

Ranking order of speed of sound is; Steel >Water > Air.

Speed of sound in normal air is 340 m/s, in water the speed is 1,430 m/s and in steel the speed is 5920 m/s.

<h3>What is speed of sound?</h3>

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. The speed of sound in an ideal gas depends only on its temperature and composition. The speed of sound in mathematical notation is conventionally represented by 'c'. The speed of sound is variable and depends on the properties of the substance through which the wave is travelling.

learn more about speed of sound: brainly.com/question/20319989

#SPJ4

7 0
1 year ago
Complete each sentence using the drop-down menus.
kirill115 [55]

Answer:

Desertification mainly impacts land  resources.

Point and nonpoint sources refer to types of water pollution.

The process of people moving to cities, called   urbanization , greatly impacts land, air, and water resources.

The burning of fossil fuels can cause smog and acid rain.

Explanation:

4 0
4 years ago
Read 2 more answers
suppose you mix two colorless liquids together and a green solid settles to the bottom of the container. explain why you might b
Andrew [12]
Because a unexpected color change has taken place also a precipitate was formed
6 0
3 years ago
A blu-ray laser has a wavelength of 405nm. In what region of the electromagnetic spectrum is this radiation? What is its frequen
love history [14]

Answer:

It lies in in the <u>visible</u><u> </u><u>region</u><u>.</u>

Frequency: <u>is</u><u> </u><u>7</u><u>.</u><u>4</u><u>0</u><u>7</u><u> </u><u>×</u><u> </u><u>1</u><u>0</u><u>^</u><u>-</u><u>1</u><u>4</u><u> </u><u>Hz</u>

{ \bf{V = f \lambda}} \\ { \tt{3.0 \times  {10}^{8}  = f \times (405 \times  {10}^{ - 9}) }} \\ { \tt{f = 7.407 \times  {10}^{14}  \: hertz}}

Explanation:

V is speed of light.

f is frequency

lambda is the wavelength

8 0
3 years ago
What is the ph of a solution that results from mixing 25 ml of 0.15 M hcl to 25 ml of 0.52 m nh3?
BartSMP [9]

Answer:

7.00

Explanation:

When the solutions are mixed, the HCl dissociates to form the ions H+ and Cl-. The ion H+ will react with the NH3 to form NH4+. The stoichiometry for this is 1 mol of HCl to 1 mol of H+ to 1 mol of Cl-, and 1 mol of H+ to 1 mol of NH3 to 1 mol of NH4+.

First, let's find the number of moles of each one of them, multiplying the concentration by the volume:

nH+ = 0.15 M * 25 mL = 3.75 mmol

nNH3 = 0.52 M * 25 mL = 13 mmol

So, all the H+ is consumed, and the neutralization is completed, thus pH will be the pH of the solvent (water), pH = 7.00.

5 0
3 years ago
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