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anygoal [31]
3 years ago
7

Why is glass a good substance for storing chemicals?

Physics
1 answer:
Elina [12.6K]3 years ago
5 0
<span>Glass is an ideal material for storing many types of chemicals, including most acids and bases. Ordinary glass is good because it doesnt contaminate glass from  the chemicals used

</span>
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A block of mass m=9.0 kg and speed V and is behind a block of mass M= 27 kg and speed of .50 m/s. The surface is frictionless, a
sammy [17]

Answer:

2.06 m/s

Explanation:

From the law of conservation of linear momentum, the sum of momentum before and after collision are equal. Considering this case where we have frictionless surface, no momentum is lost in the process.

Momentum before collision

Momentum is given by p=mv where m and v represent mass. The initial sum of momentum will be 9v+(27*0.5)=9v+13.5

Momentum after collision

The momentum after collision will be given by (9+27)*0.9=32.4

Relating the two then 9v+13.5=32.4

9v=18.5

V=2.055555555555555555555555555555555555555 m/s

Rounded off, v is approximately 2.06 m/s

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3 years ago
A boy got out of a boat and as he
emmainna [20.7K]

Answer:

third law of motion

Explanation:

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Amy swims 500 m (0.5 Km) in 6 minutes (0.1 hour). What was her speed in Kilometers per hour? A. 8.3 Km/hr B. 5 Km/hr C. 50 Km/hr
kondor19780726 [428]
Speed = Distance ÷ Time so divide .5 km by .1h. .5 km÷.1h=5 km/h, so the answer is B. 5km/h.
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Type the correct answer in the box. Spell the word correctly.
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Answer:

Vaccination is the procedure by which a person can be immunized against a disease.

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PLEASE HELP ASAP!!!!!!!!!!
Marianna [84]
Hey,


I think the answer's are 1,3


Hope this helpss

~Girlygir101~
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