Answer:
0.7757 rev/s
Explanation:
d = Diameter of the tornado = 53 m
r = Radius of the tornado = 53/2 = 26.5 m
v = Velocity of wind = 465 km/h
Converting velocity to m/s

Angular velocity


∴ Angular velocity is 0.7757 rev/s
Answer:
Molybdenum and seaborgium
Potential energy is given as

now as we know that force is related by potential energy by the formula

So it is gradient of energy with position in Y


Now at y = 0

at y = 1


at y = 2


so above is the forces at given positions
Here is your answer
b) 
REASON :
We know that
Velocity= Frequency× Wavelength
So,
Frequency= Velocity/wavelength
Here,
V= 3× 10^8 m/s
Wavelength= 2×10^-3 m
Hence,
Frequency= 3×10^8/2×10^-3
= 3/2 × 10^11
= 1.5× 10^11 Hz
HOPE IT IS USEFUL