Answer: C (impulse acting on the object)
The momentum is defined as it is the impulse acting on the force . Change in momentum is known as Impulse. Impulse is used to increase or decrease the momentum of object.
From Newtons II law
F = m. a
= m. v/t <em>since a = rate of change of velocity.</em>
<em> </em>F . t = m . v
F . t is known as impulse momentum
Energy (E) = Planck's constant (h) * frequency (nu)

therefore, frequency ~
Answer:

Explanation:
From the question we are told that
Area of plate
Angle of inclination 
Velocity 
Thickness of oil 
Weight of plate 
Generally the equation for shear force is mathematically given by







Therefore viscosity is given by

An cation. This is because the helium atom now has a positive charge