Please please please please PLEASE help!!!


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Describe how an earth wire and a fuse can protect an iPad with a metal casing

- 5 clear simple points

Answer:

homologous chromosomes

Explanation:

Positively charged and negatively charged particles of material are attracted by each other. Therefore, statement (B) is an example of static electricity.

Static electricity can be described as an imbalance between the electric charges in an object, which is actually the imbalance between the positive and the negative charges on a body.

The imbalance in the charge is described the static electricity. The contact between solid objects is one of the most common causes of static electricity.  

In static electricity, the movement of protons cannot be possible and the movement of electric charge is due to electrons. Electrons in materials are held loosely, so they can be easily exchanged via simple contact such as rubbing.

Such charges can be collected on the surface of a body until they find a  to get discharged. The way to discharge is generally through a circuit. Static electricity is the electric field that is generated due to stationary charges. The electric charges on the surface involve which combine the static electricity on the material.

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1. D: the ability to cause a change or do work

The others dont make sense for energy.

2. C: Lamp

A lamp uses the electric current to light up a room, or area.

3. B: foil will bend away

The same charges repel each other that is why a magnet is repelled by the same pole of another magnet.

4. A: Sound

You can’t hear light or any of the other options.

5. A: gravity

Gravity is a force of nature that pulls on everything.

6. C: static electricity

The opposite charges stick to each other, a battery again is an example of this.

7. B: a copper nail

Metal is one of the best electric conductors.

8. C: closed circuit

This is because if a circuit is closed the electricity flows through perfectly but for example an open one would not work or it would leak energy.

Hope this helps

Answer:

10. dependent as a change has occurred which has affected something else which is measurable.

11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.

12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.

13. Dependent as the animal's and plants' survival is reliant on the environment.

14. Dependant as the plants require sunlight for photosynthies

Answer:

All are dependent

Explanation:

Answer: The Eiffel Tower is primarily made of iron. Gustave Eiffel, the French engineer who designed and oversaw the construction of the tower, used wrought iron to build its frame. In total, the tower contains about 18,000 individual iron pieces and weighs over 10,000 tons. The iron framework is held together by 2.5 million rivets. The tower's base is made of concrete, and the top portion of the tower is covered in bronze plates.

Explanation:

Answer: try invasive species can change the natural habitat of the lake

Explanation:

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

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The average speed of the baton can be determined by dividing the total distance travelled by the total time taken for that travelling.

\(Average\ Time = \frac{Total\ Distance}{Total\ Time}\)

First, we will find the total distance, by adding the distances travelled by both Mahiya and Mrinmoy, while carrying the baton.

\(Total\ Distance = Distance\ Travelled\ by\ Mahiya\ to\ pass\ the\ baton\ to\ Mrinmoy\ +\ Distance\ Travelled\ by\ Mrinmoy\ to\ pass\ the\ baton\ to\ Mahiya\ +\ Final\ Distance\ Travelled\ by\\ Mahiya\)Total Distance = 60 m + 120 m + 60 m = 240 m

Now, we will find the total time taken for this travelling. To find out the total time we will divide each distance travelled by the speed of the traveller during that distance:

\(Total\ Time = \frac{60\ m}{6\ m/s}+\frac{120\ m}{4\ m/s}+\frac{60\ m}{3\ m/s}\\\\Total\ Time = 10\ s\ +\ 30\ s\ +\ 20\ s\)

Total Time = 60 s

Now, we finally find the average speed of the baton by using the formula:

\(Average\ Time = \frac{Total\ Distance}{Total\ Time}\\\\Average\ Time = \frac{240\ m}{60\ s}\)

Average Speed = 4 ms⁻¹

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Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Answer:

1) The speed of sound increases

2)  440 Hz

3)  29°C

4)  17°C

5) 434 Hz

6)  12 m/s

7)  17.3 m

Explanation:

1) The speed of sound increases

2) V = f×λ

f = V/λ = 343/0.78 = 439.744 ≈ 440 Hz

3) V = f×λ

512 × 0.68 = 348.16 m/s

348.16 - 331 = 17.16

T = 17.16/0.6 = 28.6 ≈ 29°C

4) Increase in speed = 350 - 340 = 10

Increase in temperature = 10/0.6 = 16.67° ≈ 17°C

5) f = V/λ = 343/0.79 = 434 Hz

6) 331 + 0.6×30 - (331 × 0.6 ×10) = 12 m/s

7) V = 331 + 0.6×25 = 346m/s

λ = 346/20 = 17.3 m

Answer:

1. DEclanation, you can see that location makes a great deal of difference in where the compass points. The angular difference between true north and magnetic north is known as the declination.

2. The Earth's magnetic North Pole is not the same as "true north," or the Earth's geographic North Pole .

3. a change or difference in condition, amount, or level, typically with certain limits.

4. a. It helps them find their way north.

b. They would get lost.

5. a.An orienteering map is a map specially prepared for use in orienteering events. These maps are much more detailed than general-purpose topographic maps, and incorporate a standard symbology that is designed to be useful to anyone, regardless of native language.

b.

The reason for this choice is that orienteers use a magnetic compass to navigate with, so it makes sense for both map and compass to be utilising the same system.

Explanation:

Answer: Room temperature

Explanation: it makes sense (sorry if its wrong)

Answer:1.God tells us that He is the Author  (2 Peter 1:20-21 Open in Logos Bible Software (if available) & 2 Timothy 3:15-17 Open in Logos Bible Software (if available))

1.The Old Testament and New Testament Authors understood they were writing the Word of God. Common Old Testament phrase – “Thus saith the Lord”. The Apostle Peter confirmed the Apostle Paul’s writings as Scripture (2 Peter 3:16)

3.Its Historical Accuracy – as verified by archeology, which has never contradicted the Bible, but only confirms and silences its critics.

Explanation:

Answer:

Many people question who the author of the Bible is and wonder if the Bible is really the Word of God. I want to give you five reasons to affirm that the Bible is God's Word.

The Word of God: Evidence that Scripture is Divine

First, I believe the Bible is the Word of God because of its scientific accuracy. The Truth of the Word of God tells us that God “hangeth the earth upon nothing” (Job 26:7). How did Job know that the earth hung in space before the age of modern astronomy and space travel? The Holy Spirit told him. The scientists of Isaiah’s day didn’t know the topography of the earth, but Isaiah said, “It is [God] that sitteth upon the circle of the earth” (Isaiah 40:22). The word for “circle” here means a globe or sphere. How did Isaiah know that God says upon the circle of the earth? By divine inspiration.

Secondly, the Bible is affirmed through historical accuracy. Do you remember the story about the handwriting on the wall that is found in the fifth chapter of Daniel? Belshazzar hosted a feast with a thousand of his lords and ladies. Suddenly, a gruesome hand appeared out of nowhere and began to write on a wall. The king was disturbed and asked for someone to interpret the writing. Daniel was found and gave the interpretation. After the interpretation, “Then commanded Belshazzar, and they clothed Daniel with scarlet, and put a chain of gold about his neck, and made a proclamation concerning him, that he should be the third ruler in the kingdom.” (Daniel 5:29). Basing their opinion on Babylonian records, the historians claim this never happened. According to the records, the last king of Babylon was not Belshazzar, but a man named Nabonidas. And so, they said, the Bible is in error. There wasn’t a record of a king named Belshazzar. Well, the spades of archeologists continued to do their work. In 1853, an inscription was found on a cornerstone of a temple built by Nabonidas, to the god Ur, which read: “May I, Nabonidas, king of Babylon, not sin against thee. And may reverence for thee dwell in the heart of Belshazzar, my first-born favorite son.” From other inscriptions, it was learned that Belshazzar and Nabonidas were co-regents. Nabonidas traveled while Belshazzar stayed home to run the kingdom. Now that we know that Belshazzar and Nabonidas were co-regents, it makes sense that Belshazzar would say that Daniel would be the third ruler. What a marvelous nugget of truth tucked away in the Word of God!

Explanation:

Answer:

Gravitational Potential Energy

Explanation:

As an object falls from rest, its gravitational potential energy is converted to kinetic energy. Conservation of energy as a tool permits the calculation of the velocity just before it hits the surface.

Answer:

Gravitational force

Explanation:

Its Gravitational potential energy converts to kinetic energy

Answer: It's kind of a subjective question by saying Which of the following pictures should be placed on the side of heat being removed from the material?

Explanation: I'm not entirely sure about this but I would think that it would be baked cupcakes because they had to undergo heat to become "baked", so they are the result of heat.

Answer:

evaporating water from its skin

Answer:

swimming into cooler water

Explanation:

Answer:

Greenhouse gases would warm the earth up causing global warming

Explanation:

To solve this we must be knowing each and every concept related to greenhouse effect. Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.

The Earth's surface is heated by the greenhouse effect all the way up to the troposphere. Higher concentrations of methane, carbon dioxide, and other gases cause it to occur.

The energy from the sun's heat is reflected back into space as infrared radiation when the Earth's surface cools. The concentrated gases inside the greenhouse effect absorb energy, raising the earth's temperature as a result. Thus, there is a link between the global warming and the greenhouse effect. Greenhouse effect would be likely to slow the rise in Earth's average temperature.

Therefore, greenhouse effect would be likely to slow the rise in Earth's average temperature.

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Answer:

No, I don't agree with the friend.

Explanation:

I don't agree because the energy doesn't just "disappear it's converted to kinetic energy. due to the friction some of the energy in the system is converted to heat energy making it look like it "disappeared".

Energy can't be created nor destroyed so it definitely can't just disappear though it can be converted or transformed.

I hope that helped :)

Answer:

D. The equator is half of a circle used to describe the northern half of the Earth.

Explanation:

hope it helps

Answer: C

Explanation: The equator divides the earth into North and South pole

Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)

Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.

2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.

3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.

The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)

Answer:

C3H8 contains three carbon atoms, and eight hydrogen atoms.

Acceleration = (change in speed) / (time for the change)

Acceleration =  -- (speed as you crossed the finish line) / (10 seconds)

Answer:

Explanation:

First of all we shall find out net  electric field at q₃ due to both of the remaining charges .

electric field due to charge Q = k Q / r² where k = 9 x 10⁹ Q is amount of charge and r is distance of point

electric field due to charge 105 x 10⁻⁶ C

= 9 x 10⁹ x 105 x 10⁻⁶ / .95²

= 1.047 x 10⁶ N/C  .

It will act away from q₂

electric field due to charge 53 x 10⁻⁶ C

= 9 x 10⁹ x 53 x 10⁻⁶ /( .5+.95)²

= 0.227  x 10⁶ N/C  .

It will act towards   q₁

These fields are in opposite direction so

net field E = 0.82 x 10⁶ N/C.

It will act away from  q₂ .

Force on q₃ due to net field

= q₃ E

= 88 x 10⁻⁶ x 0.82 x 10⁶

= 72.16 N

The direction of this field will be towards q₂ because force on negative charge in a field is always in a direction opposite to the direction of the field.

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

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