No, light does not have mass because a photon does not way anything.
Answer:
<h2>54.68 J</h2>
Explanation:
The kinetic energy of an object can be found by using the formula
m is the mass
v is the velocity
From the question we have
We have the final answer as
<h3>54.68 J</h3>
Hope this helps you
Yes a twig will float on water
1 g/cm³- density of water
roughly 0.50–0.75 g cm-3-density of twig
because a twig is less dense than water the twig will float
Answer: Stars die when their nuclear fuel runs out.
Explanation:
Answer:
The current density is
The drift velocity is
Explanation:
From the question we are told that
The nominal diameter of the wire is
The current carried by the wire is
The power rating of the lamp is
The density of electron is
The current density is mathematically represented as
Where A is the area which is mathematically evaluated as
Substituting values
So
The drift velocity is mathematically represented as
Where e is the charge on one electron which has a value
So