Answer:
Light shone on metal expulses electrons from its surface. This phenomenon is the photoelectric effect, and the electrons are called photoelectrons. Experiments indicate that by increasing light frequency, the kinetic energy of the photoelectrons increases, and by intensifying the light, the current increases
C. increased stirring i think
A. Fnet=ma
6*2=12N of force acting on the object in the direction it is accelerating
B. Fnet=ma
4*2=8N of force action on the object in the direction it is accelerating
Newton's second law states that F=ma so that means force =mass×acceleration force and mass
Answer:
Part a)

Part b)

Explanation:
Part a)
as the mass of the suspension system is given as

also we have

so now for force balance we have



Part b)
Now we know that amplitude decreases by 63% in each cycle
so after one cycle the amplitude will become 37% of initial amplitude
so it is given as

also we know




here t = time period of one oscillation
so it is



now damping constant is

