What are natives from Cambodia called

Answer:

Photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation.

Explanation:

The effect is often defined as the ejection of electrons from a metal plate when light falls on it. In a broader definition, the radiant energy may be infrared, visible, or ultraviolet light, X-rays, or gamma rays; the material may be a solid, liquid, or gas; and the released particles may be ions (electrically charged atoms or molecules) as well as electrons. The phenomenon was fundamentally significant in the development of modern physics because of the puzzling questions it raised about the nature of light—particle versus wavelike behaviour—that were finally resolved by Albert Einstein in 1905. The effect remains important for research in areas from materials science to astrophysics, as well as forming the basis for a variety of useful devices.

The emission of electrons from the surface of a metal by the action of light is called photoelectric effect. This phenomenon indicates the behavior of light as particles called photons.

The phenomenon of ejection of electrons from the surface of a metal when light of a suitable frequency falls on it is called photoelectric effect. Upon striking the surface of metals , light can set up an electric current which current which corresponds to the flow of electrons. This phenomenon is discovered by Einstein

For instance, visible light can cause ejection of electrons from the surface of metal like cesium which has low ionization enthalpy. This phenomenon is related to the observation that if light is considered as particles.

The particles of light is then called as photoelectrons or photons. Photoelectric effect find application in photoelectric cells used in colorimetry, spectrophotometers etc.

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Answer:

How does the speaker know that the lump of metal she is holding is an asteroid?  

The patterns formed inside the metal She explains that the rock is older the earth and that it is an asteroid due to the patterns formed inside it that show it contains metallic crystals that cannot be formed on earth but in space where temperatures mean that molten metal takes billions of years to cool.  

How does the speaker “hunt” asteroids? Describe how teams of scientists collect data about asteroids.  

The speaker works with astroids she attempts to search for them for scientific use. She analyzes how long ago these rocks were coming acrost the earth. How many are in the universe.  

Both speakers describe the asteroid that hit Earth and caused a massive extinction, including the decimation of the dinosaurs. The speakers describe the size of this asteroid in different terms. Summarize each speaker’s description and explain which one gives you a better picture of the size of this asteroid.  

Debris from the impact orbiting around the Earth shielded sunlight, halting photosynthesis.  

The impact was so extreme that life at ground zero was vaporized.  

tsunamis, landslides, earthquakes, and heat caused by the impact killed organisms near the site of impact.  

Does Carrie Nugent agree with Phil Plait’s assessment that we can defend the Earth from asteroids? Why or why not?  

It seems as if she does agree. I believe she has strong intentions to defend the earth and to prevent there to be any more extinction for any more animals I believe she cares to explore and recover so if she could find a way to use the asteroids to her advantage she would.

Explanation:

6. How does the speaker know that the lump of metal she is holding is an asteroid?

- The speaker knows that the lump of metal she is holding is an asteroid because the patterns formed inside the metal. She explains that the rock is older than the earth and that it is an asteroid. This is due to the patterns formed inside it. These patterns show that it contains metallic crystals that cannot be formed on earth, but instead in space where temperatures mean that molten metal takes billions of years to cool.  The scientists also use representative sampling. This is done when they deal with such large quantities of objects for estimating.

7. How does the speaker “hunt” asteroids? Describe how teams of scientists collect data about asteroids.

- The speaker “hunts” for asteroids by attempting to search for them for scientific use. She analyzes how long ago these rocks were coming across the earth and how many are in the universe.  She also is classifying them by color and shape. Some of the objects can be classified into one or more categories and this could lead to disagreements on where they should or should not be listed. Also, the objects can be difficult to see properly.

8. Both speakers describe the asteroid that hit Earth and caused a massive extinction, including the decimation of the dinosaurs. The speakers describe the size of this asteroid in different terms. Summarize each speaker’s description and explain which one gives you a better picture of the size of this asteroid.

- The asteroid hit at high velocity and effectively vaporized. It made a huge crater, so in the immediate area there was total devastation. A huge blast wave and heatwave went out and it threw vast amounts of material up into the atmosphere. 'It sent soot travelling all around the world.

9. Does Carrie Nugent agree with Phil Plait’s assessment that we can defend the Earth from asteroids? Why or why not?

- I would say that it seems to me as though she does agree. I believe she has strong intentions to defend the earth and to prevent any more extinctions for any more animals. I believe she cares to explore and recover in order to hopefully help find a way to use asteroids to her advantage. On top of that, the object shown is an Irregular galaxy. This can be determined by the fact it has an irregular shape.

Answer:

three 3

Explanation:

Answer:

2

Explanation:

Due to the fact that the gravitational force is inversely proportional to the mass of the two interacting objects, heavier objects will be drawn together by a stronger gravitational attraction. As a result, the gravitational pull between two objects grows as their respective masses rise.

Since the gravitational force is exactly proportional to the mass of both interacting objects, heavier items will be attracted by stronger gravitational forces. Therefore, the gravitational attraction between two objects grows as their respective masses do as well.

The attraction created by gravity is between masses. The gravitational force, commonly known as the gravity force, increases with the size of the masses. With an increase in the distance between masses, the gravitational pull rapidly lessens.

Therefore, second have greater gravitational force.

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Answer:

(B) The bolt was magnetized.

Explanation:

(B) The bolt was magnetized.

Answer:

dichotomous key

Explanation:

because it is

Answer:

"A blackbody is an object that absorbs all of the radiation that it receives(that is,it does not reflect any light,nor does it allow any light to pass through it and out the other side).The energy that the blackbody absorbs heats it up,and then it will emit its own radiation."

Explanation:

Risk*

Answer:

Following are the solution to this question:

Explanation:

In this question, some of the information is missing that's why its solution can be defined as follows:

[tex]v= 0\\\\u= 1.0 \frac{m}{s} \\\\s= 1\\\\m= 54 \ kg\\[/tex]

Using formula:

[tex]\to v^2-u^2=2\cdot a\cdot s \\\\\to 0^2 - 1.0^2= 2 \cdot a \cdot 1\\\\\to - 1=2a\\\\\to a= -\frac{1}{2} \ \frac{m}{s^2}\\\\ \to \bold{F= m\cdot a}\\\\[/tex]

[tex]=54 \times - \frac{1}{2}\\\\= -27\ N[/tex]

Answer:

the CORRECT answer is the "molecules gain energy" because with heating comes energy transferring into the wax molecules. and "the space between the molecules increases" because the molicules will want to space apart because of the heat

Explanation:

Answer: the molecules gain energy, The space between the molecule increases

Explanation:

i got the sauce (plato)

Answer:

two governmental: u.s department of agriculture, U.s department of energy

four non-governmental: Greenpeace, Center for environmental research and conversation, earth Island Institute, earth justice

Explanation:

I really hope these help and that I answered correctly

Answer:

Random distribution may result when resources are equally distributed and are not scarce. As breeding brings individuals together, random distribution is not maintained year round.

When resources are readily available and evenly distributed, random distribution may occur. The random dispersion of individuals is not maintained year-round, since breeding brings people together.

In environments with stable resources and environmental circumstances, random dispersion typically occurs. This pattern of dispersion is unique in that there are no substantial social contacts between species.

On land and in the water, animals are not equally dispersed. Climate zones or in all the confinements is known as Continuous Distribution, and such species of animals are known as Eurytopic Animals.

They are constrained to certain locations by a number of criteria such as food, shelter, and climate.

Therefore, The absence of any significant social interactions between species is what distinguishes this pattern of dispersion.

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Answer:

The correct option is;

B. Earth is currently experiencing a period of global warming

Explanation:

From the graph, we have;

1) From 1880 to 1900 the temperature anomaly (°C) averages a few degrees below the average surface temperature

2) The decrease below the average surface temperature is larger from  1900 to 1920

3) The surface temperature rises more steadily from below average to a little above average from 1920 to 1940

4) Between 1940 to 1980, the temperature hovers around the average surface temperature

5) The Earth's surface temperature is more or less steadily increasing from 1960 to present

Therefore, the Earth is experiencing a period of global warming

Answer:

I HAD THE SAME QUESTION AND SEARCHED IT UP AND GOT THE ANSWERS.

Explanation:

Answer:

the answer is 24 you are correct

Explanation:

Given :

An object with a volume of 9 cm³ is completely submerged in the water.

To Find :

How much water is displaced by the object.

Solution :

According to Archimedes' principle, the amount of volume displaced of fluid when an object is fully and partially submerged into that is equal to the volume of the object below the surface of liquid.

Now, it is given that object is fully submerged into water.

Therefore, volume of water displaced by the object is 9 cm³.

Answer:

The equivalent resistance of the combination is R/100

Explanation:

Electric Resistance

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

Parallel connection of resistances: If R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

[tex]\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}[/tex]

If we have 10 wires of resistance R/10 each and connect them in parallel, the equivalent resistance is:

[tex]\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}...+\frac{1}{R/10}[/tex]

This sum is repeated 10 times. Operating each term:

[tex]\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}[/tex]

All the terms have the same denominator, thus:

[tex]\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}[/tex]

Taking the reciprocals:

[tex]R_e=R/100[/tex]

The equivalent resistance of the combination is R/100

Answer:

15,000 m

Explanation:

[tex]speed = \frac{distance}{time} [/tex]

speed = 50 m/s

time = 5 minutes × 60

= 300 seconds

substitute the values into the formula

[tex]50 = \frac{distance}{300} [/tex]

[tex]50 \times 300 = distance[/tex]

[tex]15000 \: m = distance[/tex]

[tex]distance = 15000 \: m[/tex]

Answer:

8.5m bcs you subtract 6.0m and 14.5m.

Answer:

it loses its momentum. In simpler ways it is really slow

Explanation:

Answer:The voltage V in volts (V) is equal to the current I in amps (A) times the resistance R in ohms (Ω): V (V) = I (A) × R (Ω) The power P in watts (W) is equal to the voltage V in volts (V) times the current I in amps (A): P (W) = V (V) × I (A) AC Ohm's law calculator.

Explanation:

40 ampere current passes through a 1 kW heater with 25 Voltage across it.

The difference in electric potential between two places is known as voltage, often referred to as electric pressure, electric tension, or potential difference. It relates to the amount of labor required to transfer a test charge between two places in a static electric field.

Given that power of the source is 1 kW and voltage is 25 V

current is given as,

Power = Voltage*Current

1kW = 25*Current

Current = 1000/25 = 40 ampere.

40 ampere current passes through a 1 kW heater with 25 Voltage across it.

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Answer:

The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

Explanation:

Answer: The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

Answer:

When Zoe weighs the ingredients (sugar and baking soda), it weighs 25 grams in total. When she weighs the “snake” it weighs 23 grams. This is because some carbon dioxide gas produced during the chemical reaction escapes into the air.

Answer:

Socratic app

Explanation:

it will help you

Answer:

melting of rock deep underground.

Explanation:

The melting of rocks deep underground does not produce sedimentary rocks. Most igneous rocks are produced by this process.

When molten rocks underground called magma is solidified in the subsurface, it results into the formation of igneous bodies.

Answer:

A. Their shape

Explanation:

The name clearly shows that the shape of these canals are semi-circular. The semi-circular canals consist of three tubes filled with fluid and located in the inner ear. They help to maintain balance and transmit impulses through the movement of the fluids. The impulses sent through these fluids are sent to the brain for interpretation.

The function of the canals are not indicated by the name, rather the shape is hinted through the name.

Answer:

[tex]v(t=120)=36m/s\\\\d(t=120)=2160 m[/tex]

Explanation:

t=2minutes = 120 seconds:

t=120s

a=0,3m/s²

The cart starting from rest, then: vo=0m/s

[tex]v(t)=vo+at[/tex]

[tex]v(t)=0,3t[/tex]

After t=120 s the velocity are:

[tex]v(120)=0,3*120\\v(120)=36m/s[/tex]

[tex]d(t)=do+vo*t+\frac{a}{2}*t^{2}[/tex]

vo=0m/s

do=0m/s

The distance after t=120s are:

[tex]d(120)=0,3*\frac{120*120}{2} \\d(120)=36*60\\d(120)=2160 m[/tex]