I think it's D cuz D is the heliocentric theory
Gravity accelerates you at 9.8 meters per second per second. After one second, you're falling 9.8 m/s. After two seconds, you're falling 19.6 m/s, and so on.
It probably does. I'm not 100% sure about it, but a thicker wire would increase the number of positive and negative charges in it.
Answer:
The maximum frequency of revolution is 3.6 Hz.
Explanation:
Given that,
Mass = 8 kg
Distance = 400 mm
Tension = 800 N
We need to calculate the velocity
Using centripetal force

Where, F= tension
m = mass
v= velocity
r = radius of circle
Put the value into the formula



We need to calculate the maximum frequency of revolution
Using formula of frequency

Put the value into the formula


Hence, The maximum frequency of revolution is 3.6 Hz.
The one which satisfies Reynold's number and condition for transition from laminar/lamellar flow to turbulent flow maybe