An object is placed in front of a thin converging lens of focal length 12 cm. The image of the object is upright and 2.5 times a
2 answers:
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Answer: The height (position) of the ball and the acceleration due gravity
Explanation:
In this case we are taking about gravitational potential energy, which is the energy a body or object possesses, due to its position in a gravitational field. In this sense, this energy depends on the relative height of an object with respect to some point of reference and associated with the gravitational force.
In the case of the Earth, in which the gravitational field is considered constant, the gravitational potential energy will be:
Where:
is the mass of the ball
is the acceleration due gravity (assuming the ball is on the Earth surface)
is the height (position) of the ball respect to a given point
Note the value of the gravitational potential energy is directly proportional to the height.
Answer:
The magnetic field is
Explanation:
From the question we are told that
The inner radius is
The outer radius is
The distance from the axis of the conductor is
The current carried by the conductor is
According to Ampere's circuital law , the magnetic field at a point that is from the axis of the conductor
Where is the permeability of free space with a value of
substituting values