Answer:
v = 19.6 m/s.
Explanation:
Given that,
The radius of the circle, r = 5 m
The time period of the ball, T = 1.6s
We need to find the ball's tangential velocity.
The formula for the tangential velocity is given by :
Putting all the values in the above formula
So, the tangential velocity of the ball is 19.6 m/s. Hence, the correct option is (c).
Answer:
Yes, the value of g affected by the radius.
Explanation:
The formula for the force of gravity of 2 objects is
, where m1 and m2 are the masses of the 2 objects, r is the radius, and G is the gravitational constant, which is approximately 
.
Therefore, as the radius if bigger, the force of gravity is going to be smaller exponentially.
The term used to describe the quantity of matter that a body possesses is mass.
Answer:
A stone on the ground does not have zero energy…there is an internal potential in every object. Aldo is not in action or in any mechanical motion it is being acted upon by gravity and also molecular forces and energy.
<em>Hope</em><em> </em><em>this</em><em> helps</em><em> </em><em>!</em>
Power = (work) / (time)
Work = (power) x (time)
= (4 watts) x (8 hours)
1 "watt" = 1 joule/sec .
Work = (4 joule/sec) x (8 hours) x (3,600 sec/hr)
= (4 x 8 x 3,600) joules = 1,024 joules .
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Another way:
4 watts = 0.004 kilowatt
Work = energy = (power) x (time)
= (0.004 kw) x (8 hrs) = 0.032 kilowatt-hour .
