Answer:
Increase by a factor of 4.
Explanation:
The acceleration of a car moving with speed v in a circle of radius R is given by:
Now if we double the speed 
in the equation above, it becomes 
. Thus:
Therefore the acceleration is increased by a factor of 4.
Planck's equation states that
E = hf
where
E = the energy,
h = Planck's constant
f = the frequency
Because
c = fλ
where
c = velocity of light,
λ = wavelength
therefore
E = h(c/λ)
Photon #1:
The wavelength is λ₁ = 60 nm.
The energy is
E₁ = (hc)/λ₁
Photon #2:
The energy is twice that of photon #1, therefore its energy is
E₂ = 2E₁ = (hc)/λ₂.
Therefore
Answer: 30 nm
homozygous dominant:(BB) got 2 of them
heterozgous dimonant: (Bb) got 2 of them
homozygous Recessive: (none)
Your answer is C hope i helped
have a good day :)
Answer:
c. A, C
Explanation:
On equi-potential surface, fields are equal in magnitude at all points . If field is zero at all points , they will be equal so first option is correct.
Field is perpendicular to equipotential surface at all points.
