Which of the following materials is attracted to a magnet?
A. aluminum
B. copper
C. glass
D. steel

Answer :

The earth wire is a safety device that is attached to the appliance's casing. If the live wire falls loose and hits the casing, the earth wire offers a conduit for the electrical current to pass. The high current flowing through the ground line melts the fuse, turning off the device. If there is no earth wire, we will be the least resistance path for the current to ground in the event of a fault (shock), as there is no other way for the fault current to dissipate. In the event that there is an earth wire. Because the earth line is the least resistance path to the ground, we will be unaffected.

Explanation :

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Explanation:

F=ma=(100kg)(4m/s/s)=400N

N is Newton, the SI unit of force, which is a kg•m/s/s. F is net force and, of course, m is mass and a is acceleration.

The net force acting on a 100kg man standing in an elevator accelerating downward with a=9.8 m/s^2 is d. zero

What is force?

calculation force of a lift:-

 net force,

     Mg-F=Ma

      100*9.8-F=100*9.8

     F=100*9.8-100.9.8

        F= 0

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Constructive force ➡️ Process where crust is formed

Destructive force ➡️ Process where crust is destroyed

Weathering ➡️ Break down of rock materials

Erosion ➡️ Movement of broken down rock material

Tectonic uplift ➡️ Upward movement of crust

Answer:

a.) Total Momentum = 121 Kg•m/s

b.) Momentum of Azad = 94.5 Kg•m/s

c.) Momentum of Bike = 26.5 Kg•m/s

Explanation:

Now,

Mass of Azad = 21 Kg

Velocity = 4.5 m/s

P = 21 Kg × 4.5 m/s

P = 94.5 Kg•m/s

Mass of bike = 5.9 Kg

Velocity = 4.5 m/s

P = 5.9 Kg × 4.5 m/s

P = 26.5 Kg•m/s

Total Momentum = Momentum of Azad + Momentum of Bike

Total Momentum = 94.5 + 26.5 = 121 Kg•m/s

-TheUnknownScientist 72

The wavelength of the water wave is 15 m.

Wavelength is the distance of a complete cycle traveled by a wave.

To calculate the wavelength of the wave, we use the formula below.

Formula:

Where:

make λ the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, The wavelength of the water wave is 15 m.
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The uses of fossil fuel causes:

Fossil fuels burn and increases in global temperature because it emits greenhouse gases. And the extreme climate change decreases biodiversity and last but not the least it increases pollution because burning of fuels emit gases like Carbon-dioxide etc...~

Answer:

All of the above

Explanation:

Fossil fuels burn causes combustion .

And we know combustion of hydrocarbons releases carbon dioxide .

1900s -- 1980s

Forensic science R&D in the 1980s

•How does the dancing activity help you in improving fitness skills?

Answer:

•Health benefits of dancing

improved condition of your heart and lungs. increased muscular strength, endurance and motor fitness. increased aerobic fitness. improved muscle tone and strength.

Explanation:

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#Keep On Learning

#Carry On Learning

Answer:

Gale force winds, lightning strikes, temperature extremes and a deluge of snow, hail or rain. These combined forces break up the rocks and erode the peaks into their stark, sculpted forms. Falling ice, rocks and gushing water wear away at the mountain slopes.

The pressure on the top face of the block is 14,000 N/m².

The pressure experienced by an object is force per unit area of the surface. The pressure experienced  by the object increases with increase in the applied force and decrease in surface area.

The pressure on the top face of the block is calculated as follows;

P = F/A

where;

P = (3.5 x 10³)/(0.25)

P = 14,000 N/m²

Thus, the pressure on the top face of the block is 14,000 N/m².

Learn more about pressure here: https://brainly.com/question/25736513

Answer:

answer is 12 because 23-11=12

Explanation:

it is because the question want find one atom contains how many

it would deform, transferring some of its kinetic energy into the concrete molecules. Depending on the relative mass and anchorage of the wall, this may cause it to shift.

Answer:

hhuuufuhrhuuuryheu7uhhehfu

The statement is true. Binaural fusion is the process in which the brain processes information from each ear and creates two different perceptions of the location of the sound.

Binaural fusion, also known as binaural integration, is a cognitive process in which different auditory information is delivered binaurally, or to each ear separately.

This mechanism is critical in human speech comprehension because one ear may take up more information about speech stimuli than the other.

Yes, the brain processes the information from both ears, but it only uses the tiny difference among them to produce one sense of where a sound is coming from.

Hence the statement is true.

To learn more about binaural fusion refer to the link;

https://brainly.com/question/11395223

Answer:

The answer is false
I used the bottom answer and it was wrong
You're welcome

Explanation:

Force at moon:-

Use Newtons second law

[tex]\\ \rm\Rrightarrow F=ma=65(1.62)=105.3N[/tex]

Force at moon is one sixth of force at earth

Weight on earth;-

Answer:

Kicking a ball involves you applying a force because you are pushing it with your foot and that makes it fly up. Once you shoot something into the air, the gravity force pulls it back down to the Earth, which is a different type of force.

Explanation:

hope this helps :)

Answer:

12113.318mL

Explanation:

I hope this helps

Answer:

14 meters to the east and then 20 meters back to the west

We are given that:

We need to find:

Using equations of motion:

➙ v² - u² = 2as

➙ v = u + at

here,

From the given information, we can conclude that:

Now, using equation of motion:

➝ v = u + at

➝ v = 0 + ( 8 × 1.5 )

➝ v = 0 + 12 .0

➝ v = 12 m/s

For, acceleration :

➝ v² - u² = 2as

➝ ( 12 )² - ( 0 )² = 2 × 8 × s

➝ 144 - 0 = 16s

➝ 16 s = 144

➝ s = 144 / 16

➝ s = 9m

[tex] \dag[/tex] Since, we take displacement in terms of distance in some places, therefore we can say that the height from which the object was dropped is 9 meters .

Answer:

a wave with a time period of 2 seconds has a frequency of 1 ÷ 2 = 0.5 Hz. A sound wave has a time period of 0.0001 seconds.

The "cosmic tug-of-war" between NGC 2444 and NGC 2445 has result in the creation of new stars based on NASA's report.

A "cosmic tug-of-war" can be defined as a terminology that is used in astronomy to express the ratio of astronomical (planetary) and solar attractions on a natural satellite in space.

According to the National Aeronautics and Space Administration (NASA), NGC 2444 and NGC 2445 are both described as being engaged in a "cosmic tug-of-war" with NGC 2444 seemingly winning the battle..

In conclusion, NGC 2444 and NGC 2445 are both engaged in a "cosmic tug-of-war" because the immense gravity of NGC 2444 is pulling strands of gas from NGC 2445.

Read more on NASA here: https://brainly.com/question/1350178

Answer:

More energy

Explanation:

Steam is hotter than boiling water because it contains more energy

vf²=vi²+2ad

12²=0+2.a.10

a = 7.2 m/s²

W = m.g

m = W/g = 98/9.8 = 10 kg

∑F=m.a

W-fr=m.a

fr(air friction)=W - m.a

fr = 98 - 10 x 7.2

fr = 98 - 72

fr = 26 N

Question :-

Answer :-

[tex] \rule {180pt} {2pt} [/tex]

Given :-

To Find :-

Solution :-

As per the provided information in the given question, we have been given that Force is 10000 Newton , Area is given 200 meter² . And, we have been asked to calculate the Pressure exerted on the Ground .

For calculating the Pressure , we will use the Formula :-

Therefore , by Substituting the given values in the above Formula :-

⇒ Pressure = Force / Area

⇒ Pressure = 10000 / 200

⇒ Pressure = 50

Hence :-

[tex] \underline {\rule {180pt} {4pt}} [/tex]

Answer:

50 Pa

Explanation:

Here,

→Force(F)=10000N

→Area(A)=200m²

As we have,

→Pressure=Force/Area

→Pressure=10000N/200m²

→Pressure=50 Pa

Answer:

9

Explanation:

Say you had 1 apple, if someone gives you another 8 apples you would have 9 apples total.

Answer:

9

Explanation:

9 is 1 higher than 8, so 8+1 equals 9

Answer:  it will take it about 2 1/2 minutes to reach Mercury. Not hours.

hope this helps!

Answer:

A rock is made from two or more minerals. A mineral might contain just one chemical element or more than one element. ...

The diamond is the Earth's hardest mineral. A diamond is so hard that it's possible to cut a diamond with another diamond