Answer:
3.82 Hertz
Explanation:

This is the equation of a wave which varies sinusoidally.
The standard equation of a wave is given by

where, A be the amplitude of the wave, k be the wave number, x be the displacement of wave, ω be the angular frequency and t be the time taken, and Ф be the phase angle.
now compare the given equation by the standard equation, we get
k = 3
ω = 24
Ф = π / 2
So, the angular frequency = 24
The relation between the angular frequency and the frequency is given by
ω = 2 x π x f
24 = 2 x 3.14 x f
f = 3.82 Hertz
A landfill liner, or compostie liner, is intened to be a low permeable barrier, which is laid down under engineered landfill sites.
I believe its A.
Answer:

Explanation:
given,
mass of solid sphere = M
radius = R
linear speed = v
now,
Linear Kinetic energy
...............(1)
Rotational kinetic energy

moment of inertia of the solid sphere

and v = R ω

............(2)
ration of rotational and Kinetic energy


hence, ratio of rotational to linear kinetic energy is equal to 2/5.