Solve 1-2 a,b,c please
1 answer:
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Answer:
Position A/Position E
,
Position B/Position D
,
, for
Position C
,
Explanation:
Let suppose that ball-Earth system represents a conservative system. By Principle of Energy Conservation, total energy () is the sum of gravitational potential energy (
) and translational kinetic energy (
), all measured in joules. In addition, gravitational potential energy is directly proportional to height (
) and translational kinetic energy is directly proportional to the square of velocity.
Besides, gravitational potential energy is increased at the expense of translational kinetric energy. Then, relative amounts at each position are described below:
Position A/Position E
,
Position B/Position D
,
, for
Position C
,
Answer:
The distance is
Explanation:
From the question we are told that
The focal length is
Generally the lens equation is mathematically represented as
At image distance u = 1.5 m
=>
=>
At image distance
=>
=>
The distance the lens need to move is evaluate as