I had this question on a quiz, it was X.
Answer: the flat fire the car cannot move correctly ,while in the good tire the car can move correctly
Explanation: because the flat tire will not allow the person to drive correctly, while the good tire is can allow a person to drive correctly.
I would chose as the answer A I think that it uses so in the correctly.
You would have to subtract the mass number with atomic number which will give you 119 number of neutrons.
Answer:
7) λ = 0.5 m, 8) f = 4.8 10¹⁴ Hz
Explanation:
The speed of an electromagnetic wave is
c = λ f
where c is the speed of light in vacuum c = 3 10⁸ m / s
7) indicate the frequency f = 6.0 10⁸ Hz
we do not know the wavelength
λ = c / f
we calculate
λ = 3 10⁸ / 6.0 10⁸
λ = 0.5 m
8) indicate the wavelength λ = 6.25 10-7 m
we do not know the frequency
f = c / λ
we calculate
f = 3 10⁸ / 6.25 10⁻⁷
f = 0.48 10¹⁵ Hz
f = 4.8 10¹⁴ Hz
