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zepelin [54]
3 years ago
10

Return the first n>0 elements of list l. assume the list elements are numbered from 1 to n

Chemistry
1 answer:
Daniel [21]3 years ago
4 0
I dont get it someone please help
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If you can smell your grandmother’s perfume from across the room, you are experiencing the result of which liquid property?
cestrela7 [59]
The appropriate answer is D. volatility. Volatility refers to the susceptibility of liquids to vaporize. Perfume is liquid when applied but because of volatility, it has a tendency to vaporize and so it will convert to a gas and diffuse across the room. The process by which a liquid changes to a vapor is called evaporation. 
5 0
3 years ago
PLEASE ANSWER FAST!!!!!!!!!!!!!!!
Savatey [412]

Answer:

The answer is A. a wave of vibrating electric and magnetic energy.

6 0
3 years ago
A speed time graph shows that a car moves at 20 m/s for 15s. The car's speed steadily decreases until it comes to a stop at 40s.
ladessa [460]
0s to 15s: constant speed/zero acceleration
15s to 40s: constant gradient, therefore constant deceleration
4 0
3 years ago
HELP ASAP PLEASE<br> Use the word Precision in a sentence relating to chemistry!
Leno4ka [110]

Answer:

I needed to use good precision in my measurement for my chemistry lab

Explanation:

7 0
3 years ago
Night visin cameras are sensitive to energies around 2.21 x 10-19 J. What wavelength of electromagnetic radiation do they use?
defon

Answer:

8.99×10^-7m

Explanation:

The wavelength can be calculated using the expression below

E=hcλ

Where E= energy= 2.21 x 10^-19 J.

C= speed of light= 3x10^8 m/s

h= planks constant= 6.626 × 10^-34 m2 kg / s

E=hcλ

λ= E/(hc)

Substitute for the values

λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )

= 8.99×10^-7m

6 0
3 years ago
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