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KIM [24]
3 years ago
5

According to recent research ice skaters are able to glide smoothly across the ice because

Chemistry
1 answer:
Anna11 [10]3 years ago
6 0
Ice is constantly subliming to form a layer of water vapor
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What happens when some occurs in respiration
quester [9]
<span>Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy.</span>
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3 years ago
Which of the following could you do to increase the strength of an electromagnet? decrease the number of windings decrease the e
IgorLugansk [536]
I believe the most appropriate answer would be to change the core from wood to iron. This is because iron is a magnetic material while wood is not magnetic hence cant acquire magnetism. Other factors that would increase the strength of electromagnet would be; increasing the amount of electric current, and increasing the number of windings.
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3 years ago
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List 10 uses of metals​
KatRina [158]

Answer:

1.In electronics

2 In medicine

3.In the construction

4.In jewelry

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7 0
3 years ago
When the plutonium bomb was tested in New Mexico in 1945, approximately 1 gram of matter was converted into energy. Suppose anot
stiv31 [10]

Answer:

See explanation

Explanation:

Given Einstein's theory of relativity, we have that;

E= mc^2

m= mass of the substance

c= speed of light

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E= 1 ×10^-3 × (3 × 10^8)^2

E = 9 × 10^13 J

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E = 8.7 × 10^-3× (3 × 10^8)

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6 0
3 years ago
A sample of argon initially has a volume of 5.0 L and the pressure is 2 atm. If the final temperature is 30° C, the final volume
jenyasd209 [6]
Volume of Argon V1 = 5.0 L  
Pressure of Argon P1 = 2 atm 
Final temperature T2 = 30 C = 30 + 273 = 303 K 
Volume at final temperature V2= 6 L 
Pressure at final temperature P2 = 8 atm  
We know that (P1 x V1) / T1 = (P2 x V2) / T2  
(2 x 5)/ T1 = (8 x 6)/ 303 => T1 = (10 x 303) / 48 
Initial Temperature T1 = 3030 / 48 = 63.12 
Initial Temperature = -209. 8 C
4 0
3 years ago
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