Nitrogen is used to proctect steel from water because nitrigen has?

Answers

Answer 1

Answer: Nitrogen is used to protect steel from water because nitrogen has stable physical properties that enables the nitrogen to be resistant to water molecules. Nitrogen also serves as a coat for the steel to not be corroded easily

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If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front of the lens, what is the height of the image? A. 6 millimeters
B. 8 millimeters
C. 14 millimeters
D. 22 millimeters

Answers

The correct answer is letter A. 6 millimeters. If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front of the lens, the height of the image is 6 millimeters.

Solution:
18 / x = 12 / 4
12x = 72
x = 6mm

The source of the sun's heat is A. nuclear fission.
B. nuclear disintegration.
C. nuclear fusion.
D. nuclear separation.

Answers

The core of the sun is so hot and there is so much pressure, nuclear fusion takes place:hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).

Answer:

C. nuclear fusion.

Explanation:

The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).

Calculate the accleration of a 25-Kg object that moved with force of 300 N

Answers

F=ma
a=F/m=300/25=12 m/s^2

Describe the conversions between potential and kinetic energy that occur when you shoot a basketball at a basket

Answers

When you shoot a basketball at a basket, the energy from your hands is transferred into the basketball. When you hold the ball up in preparation to shoot, it has potential energy, meaning that it has stored energy that can turn into kinetic energy. When you shoot it, that potential energy turns into kinetic energy, causing the basketball to move.

Which of the following is not an integer?A. -52/13
B. -3.0
C. 48/6
D. 48/5

Answers

Answer:

The answer is D.

Explanation:

A integer can be positive, negative, or 0. So by simplifying all the fractions (making them into mixed numbers) we can find out that D results in a decimal, which is not a integer.

The smallest group of particles in a crystal that retains the shape of the crystal is called the

Answers

Answer:

Unit Cell

Explanation:

A unit cell is the smallest fundamental particle of a crystal structure that represents the structure of a crystal.

Long-range, three-dimensional repetitiveness of this unit cell forms a crystal. A unit cell is composed of ions or atoms in a particular arrangement forming a well-defined structure.

Crystal have a sharp melting and boiling point and when cut using a tool, they give a sharp edge on the pieces.

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How does an increase in thermal energy affect molecules?

Help fast please!!!!!A new solar system with two planets of equal mass - Planet X and Planet Y - is discovered. Planet X is closest to the sun. What is the sun's gravitational pull on Planet Y as compared with Planet X?A.Because Planet Y is farther from the sun, the sun's gravitational pull on Planet Y is less than the sun's gravitational pull on Planet X.B.The sun's gravity repels Planet Y with more force than it repels Planet X, which is why Planet Y is farther away.C.Because Planet Y is farther from the sun, the sun's gravitational pull on Planet Y is more than the sun's gravitational pull on Planet X.D.The sun's gravitational pull on Planet Y is equal to its gravitational pull on Planet X because distance does not affect the sun's gravity.

The diagram below shows a 1.5 kilogram kitten jumping from the top of a 1.80 meter high refrigerator to a 0.90 meter highcounter.RefrigeratorCounterCOThe kitten's gravitational potential energy on top of the refrigerator is greater, but what is the kitten's gravitationalpotential energy on top of the counter? Assume gravity as 10, if needed.