1897 Because he was doing an experiment at that time .
<span>
A vacuum doesn't contain a medium.
Light, which is an electromagnetic
wave and doesn't require a medium,
will travel there. Sound, which is a
mechanical wave and requires a
medium, will not travel there.</span>
(You can see the light of the sun and other stars, which travels to us through
space. Astronauts can't hear the sound of each others' voices when they're
standing together on the moon because there's no medium between them,
so they have to use radio even to go only a few feet.)
Givens
Total Resistance (the bulbs are connected in series)
- R = r1 + r2
- r1 = 3 ohms
- r2 = 3 ohms
- R = 3 + 3 = 6 ohms
- E = 12 volts
- I = ??
Formula
E = I * R
Solution
12 = I * 6 Divide both sides by 6
12/6 = I*6/6
2 = I
The current = 2 amperes. Answer
If its atomic number is 48, then it has 48 protons in the nucleus
of each atom. Any more mass than that is supplied by the neutrons
that are mixed in there with the protons.
If the mass is 167, and 48 of those are protons, then there are
(167 - 48) = 119 neutrons
in each nucleus.
Answer: Impulse = 6.37kgm/s
Explanation: please find the attached file for the solution.
