Answer:
c) equals V
Explanation:
This is because, since the isolated, irregularly shaped piece of platinum is in electric equilibrium, the electric potential at all points on its surface is V. So that, the potential difference across any point is zero. This implies that diametrically opposite sides have the same potential and thus, the potential at other points of the surface is V since it is in electric equilibrium.
Answer:
The mechanical advantage of a machine is the ratio of the load (the resistance overcome by a machine) to the effort (the force applied)
Explanation:
There is no unit for mechanical advantages since the unit for both input and output forces cancel out.
Please give Brainliest
At maximum height, initial velocity

Here, h is maximum height and g is acceleration due to gravity.
According to above relation, the vertical height does not depend on the mass of body it depend only upon the initial velocity.
Therefore, the 20 kg rock reach the same height as 10 kg rock.
That's what happens whenever anything is dropped or falls.
-- a roller coaster leaves the top of a hill
-- a pencil rolls off the desk
-- the cat jumps off the top of the refrigerator
-- the little boy slides down the slide