Answer:
1. to inform
2.to enertain
3. to inform
Explanation:
sorry im really late but hopefully someone can still use this :)
At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is
∑ F = 450 N - (0.75 kg) g = (0.75 kg) a
where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of
a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²
Then its maximum tangential speed v is such that
a = v² / (1.0 m)
⇒ v = √((1.0 m) a) ≈ 25 m/s
The severity of an electric shock depends on following factors:
a) Amperage
i.e. the amount or strength of electric current passing through the body. A larger magnitude of current causes more damage. Large amount of current can cause the organs to burn and ultimately causing death.
b) Duration of the exposure
The duration of exposure to shock is the second factor. If we are exposed to the shock for a longer duration, it will cause more harm as compared to when exposure is short lived.
c) Pathway of electric current in the body
Pathway of electric current matters. If the current passes through the vital body organs and damages them e.g. heart it may lead to death.
Thus the A option from the question is correct answer.