You have a large metal sphere that starts out isolated and has no net charge. Then you bring a positively charged rod near it wi
thout touching.
Will there be a force between the sphere and rod?
Draw a qualitative diagram showing the location of the charges in the metal sphere once the rod is brought near.
Will there be a force between the sphere and rod?
Draw a qualitative diagram showing the location of the charges in the metal sphere once the rod is brought near.
1 answer:
Answer:
Yes
Explanation:
There will be a force because the large metal sphere is polarized when the rod is placed close to it, this happens because the metal sphere has free electrons and they will be attracted by the positively charged rod, the sphere will remain neutral as a whole (the same number of negative and positive charge), but a portion of the sphere will become more positive and the other more negative, creating this force.
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Answer:
122.5 N/m
Explanation:
According to the law of conservation of energy, if there is no air resistance or frictional forces, the initial elastic potential energy of the spring toy is entirely converted into gravitational potential energy when the toy reaches the highest point.
Therefore, we can write:
where the term on the left is the initial elastic potential energy while the term on the right is the gravitational potential energy, and where
k is the spring constant
x = 0.02 m is the compression of the spring
m = 0.01 kg is the mass of the toy
h = 0.25 m is the height reached by the toy
is the acceleration due to gravity
Solving for k,