An electric light is plugged into a 120-V outlet. If the current in the bulb is 0.50 A, how much electrical energy does the bulb
1 answer:
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pV/T=const goodluke
The amount of gravitational potential energy acquired by the rock is equal to:
where
m is the mass of the rock
g is the gravitational acceleration
is the increase in height of the rock
Substituting the data of the problem, we find
So, Natalie gave 220.7 J of energy to the rock.
where
m is the mass of the rock
g is the gravitational acceleration
Substituting the data of the problem, we find
So, Natalie gave 220.7 J of energy to the rock.
The statement shows a case of rotational motion, in which the disc <em>decelerates</em> at <em>constant</em> rate.
i) The angular acceleration of the disc (), in revolutions per square second, is found by the following kinematic formula:
(1)
Where:
- Initial angular speed, in revolutions per second.
- Final angular speed, in revolutions per second.
- Time, in seconds.
If we know that ,
y
, then the angular acceleration of the disc is:
The angular acceleration of the disc is radians per square second.
ii) The number of rotations that the disk makes before it stops (), in revolutions, is determined by the following formula:
(2)
If we know that ,
y
, then the number of rotations done by the disc is:
The disc makes 3.125 revolutions before it stops.
We kindly invite to check this question on rotational motion: brainly.com/question/23933120