The brightness of the bulb doesn't tell you anything about the energy of the
electrons passing through it.
It tells you how much total energy is <em><u>lost</u></em> by the <em><u>total flow</u></em> of electrons through
the bulb. You can't tell what part of that is due to a large or small number of
electrons, or what part of it is due to each electron losing a large or small amount
of energy on the way through.
Answer:
2.e
3.b
4.c conduction needs friction
5.a
1, d
270/70^2 = x/80^2
Cross multiply
270 (6400) = 4900x
x = 270(6400)/4900
352 and 32/49 feet
Hope this helps
Answer:
True.
Explanation:
A nanometer is a unit of mass, whereas a nanosecond is a unit of time. To convert 1.3 hours to minute, you would multiply by 1 h / 60 min. Kilometer is a unit of length, whereas kilogram is a unit of mass. True.
