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horsena [70]
2 years ago
7

For a plane to make a turn , a .......is required to change the motion in direction of that turn.

Chemistry
1 answer:
horrorfan [7]2 years ago
8 0

Answer: The answer is force.

Explanation:

Newtons 3rd law is from an action, there should be a reaction. so the planes moving it turns with force. ( this ould get a Brainliest answer)

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______________________ produce evidence that helps to answer important questions or could also lead to new questions.
lesya [120]

Answer:

It is B theories

Explanation:

4 0
3 years ago
A sample of 5 moles of gas is held at a constant temperature of 500 k inside a container with a volume of 0.25 l. What pressure
pshichka [43]

Answer: 41 atmosphere

Explanation:

Given that:

Volume of water V = 0.5 L

(since 1 liter = 1dm3

0.5L = 0.5dm3)

Temperature T = 500K

Pressure P = ?

Number of moles of gas = 5 moles

Note that Molar gas constant R is a constant with a value of 0.0082 ATM dm3 K-1 mol-1

Then, apply ideal gas equation

pV = nRT

p x 0.5dm3 = 5 moles x (0.0082 atm dm3 K-1 mol-1 x 500K)

p x 0.5dm3 = 20.5 atm dm3

p = (20.5 atm dm3 / 0.5dm3)

p = 41 atm

Thus, the gas is under a pressure of 41 atmosphere

5 0
3 years ago
Why do humans primarily form communities ?
AlladinOne [14]

Easy  B. is the answer

7 0
3 years ago
Read 2 more answers
Why did it require two sodium atoms to complete the Na2O formula unit? Na has +2 charge and O has -1 charge. Na has +1 charge an
Artyom0805 [142]
Na₂O is an ionic compound. Na is in group 1 which means it has one electron in the outer shell. O is in group 6 so it has 6 electrons in the outer shell.
To become stable atoms need to either lose the electrons in the outer shell or gain electrons to gain a complete outer shell configuration. 
To become stable Na loses its outer electron and becomes positively charged. It only loses one electron, so net charge is +1. O to become stable gains 2 electrons to complete its outer shell and becomes negatively charged. since it gains 2 electrons, the net charge is -2. 
cation - Na⁺
anion - O²⁻
O gains 2 electrons but Na can give only one electron, therefore 2 Na⁺ ions are required. 
the compound can be written by exchanging the charges
  ions         Na⁺       O²⁻
charge       +1       -2
exchange   Na₂O
Correct answer is <span>Na has +1 charge and O has -2 charge</span>
5 0
3 years ago
Read 2 more answers
Jose and Sarah are running in the cross country meet. Their skeletal and muscular systems work to move them through the course.
Inessa [10]

Answer: Jose and Sarah are running in the cross country meet. Their skeletal and muscular systems work to move them through the course. As they run, they breathe faster and harder and their heart rate increases.

A.work together

Explanation:This should help:)

5 0
3 years ago
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