Answer:
Frequency =3.5×10^14hertz
Wavelength = 8.6×20^-7m
Explanation:
Energy of photon is expressed as;
E = hf where;
h is the Planck constant
f is the frequency of the photons
From the formula f = E/h
Given E = 2.32 × 10^ − 19 J
h = 6.63×10^-34Js
f = 2.32×10^-19/6.63×10^-34
f = 0.35×10^(-19+34)
f = 0.35 × 10^15
f = 3.5×10^14hertz
To get the wavelength, we will use the relationship:
f = c/λ
λ = c/f
Given c = 3×10^8m/s
f = 3.5×10^14hertz
λ = 3×10^8/3.5×10^14
λ = 0.86×10^-6m
λ = 8.6×20^-7m
The pressure at a point on a sloping surface with a tank filled with liquid depends on the slope of the surface because the elevation is a factor here. The force that is a factor too is dependent on the angle of elevation. Force is equal to weight times sine angle.
Answer:
The universal sign for choking is __________.
A.
two balled fists pressing the abdomen
B.
pointing at an open mouth
C.
two hands grasping the neck
D.
pretending to cough
Explanation:
