Answer:
Sound waves are pushed closer together, decreasing wavelength
and increasing frequency.
Answer:
Nitrogen, Oxygen, Argon.
Explanation:
The three (3) most abundant gases in the dry atmosphere are"
- Nitrogen
- Oxygen
- Argon
These are not the only components of dry air. Dry atmosphere is made up of:
- 78.09% Nitrogen;
- 20.95% Oxygen;
- 0.93% Argon;
- 0.04% Carbon dioxide;
- Other gases
Okay so don't quote me on this but I believe the answer is A) I'm saying this because B and C make no sense. and you can't change the mass of something without changing it totally.
Answer:
The right solution is "84.09 nm".
Explanation:
The given values are:
Refractive index of glass,
= 1.52
Refractive index of oil (n),
= 1.64
Wavelength (λ),
= 555 nm
Now,
The thickness of the film (t) will be:
= 
= 
= 
= 
Answer:
60 Ω
Explanation:
R(com) = 15 Ω
1/R(com) = 1/R1 + 1/R2 + 1/R3 ..... + 1/Rn
1/15 = 1/20 + 1/R2
1/R2 = 1/15 - 1/20
1/R2 = (4 - 3) / 60
1/R2 = 1/60
R2 = 60 Ω
así, la combinada de resistencia necesaria es 60 Ω
