Plastic and glass are both poor heat conductors. They are insulators which means their electrons don’t move as freely as conductors.
Electricity is genterated by generator
The frequency of the yellow light is 
Explanation:
The relationship between wavelength, frequency and speed of a wave is given by the wave equation:

where
v is the speed of the wave
f is the frequency
is the wavelength
For the yellow light in this problem, we have:
is the speed
is the wavelength
Solving for f, we find its frequency:

Learn more about frequency and waves:
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Answer:
There is an attractive force between the rod and sphere.
Explanation:
When negatively charged rod is placed close to the metal sphere then due to the electric field of the rod the opposite free charge of metal sphere comes closer to the rod on one surface
While similar charge in the metal sphere move away from the rod due to repulsion of electric field of rod
This temporary charge distribution of the metal sphere is known as induction
And since opposite charge on the metal surface comes closer to the metal sphere so here we can say that the rod will attract the metal sphere
so here correct answer will be
There is an attractive force between the rod and sphere.
False.
Unweathered rock that underlies soul is known as bedrock.