the wind pushes a paper cup along the sand at a beach. the cup has a mass of 0.025kg and accelerates at a rate of 5m/s2 how much force is the wind exerting on the cup

Answers

Answer 1

Answer: Mass of the paper cup = 0.025 kg
Rate of acceleration of the cup due to force of wind = 5 m/s^2
We already know that
Force = Mass * Acceleration
So Force exerted by the wind on the cup = 0.025 * 5 kg m/s^2
= 0.125 Newton
So the force exerted by the wind on the paper cup is 0.125 newton.I hope this is the answer thatyou wanted and the process of doing such problems is clear to you.

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Which is true about covalent compounds?Have a high melting point

Conduct electricity when dissolved in water

Have a low boiling point

Are extremely hard

Answers

Covalent compounds have a low boiling point. All the other answers apply to ionic compounds.

Covalent compounds have a low boiling point.

Tin-126 has a half life of 100,000 years. How many years does it take toreduce 100 g of Tin-126 to 12.5 g?
100,000 years
200,000 years
50,000 years
300,000 years

Answers

Answer:

300,000 years

Explanation:

100g=0 years

50g=100,00 years

25g=200,00 years

12.5g=300,000 years

300’000 yes I think she is correct

The orderly geometric arrangement of atoms is called a crystalline solid. a. True
b. False

Answers

True
A) This fact is always true

How is the number of neutrons and in nucleus of an atom calculated

Answers

Explanation:

Atomic number is defined as the sum of total number of protons present in an atom. Each element has different atomic number.

Whereas mass number is the sum of total number of both protons and neutrons present in an element.

For example, an atom with mass number as 15 and has atomic number 7. Then it means it has 7 protons.

Therefore, number of neutrons present in it will be calculated as follows.

Mass number = no. of protons + no. of neutrons

15 = 7 + no. of neutrons

no. of neutrons = 15 - 7

= 8

Thus, we can conclude that the number of neutrons is calculated as mass number minus total number of protons present in the atom.

The number of neutrons in an atoms nucleus can be calculated by subtracting the atomic number of that atom from its mass number.

$(mass number - atomic number = number of neutrons)$

Heating zinc sulfide in the air causes the formation of

Answers

Zinc sulfoxide? I think this right I am not sure

Calculate the mass of 25,000 molecules of nitrogen gas. (1 mole = 6.02 x 1023 molecules)

Answers

Answer: $116.2* 10^(-26)$ grams

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number $6.023* 10^(23)$ of particles.