Answer:
The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are labeled at the top of each column.
Explanation:
Vas happenin!
The third one makes no since because the clouds carry the rain. It isn’t always cold when it’s going to rain
The fourth one is a good one
The second one again it’s not always cold when it’s raining
The first one could be it also
Hmmm I would go with the last one
Sorry if it’s wrong
Answer:
Explanation:
For transitions:
Also,
Where,
h is Plank's constant having value
c is the speed of light having value
So,
So,
Given,
1 m = 10⁻⁹ nm
Answer:
A_1 = 0.0135 m2
Explanation:
GIVEN DATA:
mass of SECOND truck m2 =2500 kg
mass of FIRST truck m1 = 25 lb = 11.33kg
Area A2 = 3 m2
according to the pascal's law, pressure at one point is equal to pressure exerted on the other side, therefore we have
we know that
A_1 = 0.0135 m2