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djyliett [7]
2 years ago
7

Provide examples of newtons laws of motion. (laws one two n three)

Chemistry
1 answer:
Butoxors [25]2 years ago
7 0

One example i know is a fruit (apple) falling from the tree or a pecan falling

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QUESTION 2
alina1380 [7]

Answer:

A

Explanation:

Mutualism is A symbiotic relationship between two species in which both partners benefit

8 0
3 years ago
Which word describes the forces acting on the car?
KIM [24]
C. Unbalanced describes the forces acting on the car
7 0
3 years ago
How long does it take for a 12.62g sample of ammonia to heat from 209K to 367K if heated at a constant rate of 6.0kj/min? The me
Georgia [21]
First, consider the steps to heat the sample from 209 K to 367K.

1) Heating in liquid state from 209 K to 239.82 K

2) Vaporaizing at 239.82 K

3) Heating in gaseous state from 239.82 K to 367 K.


Second, calculate the amount of heat required for each step.

1) Liquid heating

Ammonia = NH3 => molar mass = 14.0 g/mol + 3*1g/mol = 17g/mol

=> number of moles = 12.62 g / 17 g/mol = 0.742 mol

Heat1 = #moles * heat capacity * ΔT

Heat1 = 0.742 mol * 80.8 J/mol*K * (239.82K - 209K) = 1,847.77 J

2) Vaporization

Heat2 = # moles * H vap

Heat2 = 0.742 mol * 23.33 kJ/mol = 17.31 kJ = 17310 J

3) Vapor heating

Heat3 = #moles * heat capacity * ΔT

Heat3 = 0.742 mol * 35.06 J / (mol*K) * (367K - 239.82K) = 3,308.53 J

Third, add up the heats for every steps:

Total heat = 1,847.77 J + 17,310 J + 3,308.53 J = 22,466.3 J

Fourth, divide the total heat by the heat rate:

Time = 22,466.3 J / (6000.0 J/min) = 3.7 min

Answer: 3.7 min


3 0
3 years ago
Why will paper stick to a ballon that you have rubbed on your hair?
Usimov [2.4K]
Depending on the balloon, the surface will cause friction between the two and oxygen molecules will fuse together to create a sticky sensation
7 0
3 years ago
where are the first repost of new scientific discoveries published A.) Internet Sites B.) Magazines C.) encyclopedias D.) Scient
anygoal [31]

Answer:

D

Explanation:

3 0
3 years ago
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