5.2m/s
Explanation:
Given parameters:
Mass of baseball = 0.15kg
Momentum of baseball = 0.78kgm/s
Unknown:
Speed of baseball = ?
Solution:
The momentum of the baseball is a function of the product of the mass and velocity. It is a vector quantity:
Momentum = mass x velocity
Since the speed of the ball is unknown:
Velocity =
=
= 5.2m/s
The speed of the baseball before it lands is 5.2m/s
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The number of valence electron information on the periodic table is used to complete electron dot diagrams. One can obtain the number of valence electron information on the periodic table by determining the column number of the periodic table. The first column number has 1 as the number of its number of valence electron and so on.