Answer:
The speed of the plank is 81.68 m/s
Explanation:
Given that,
Speed of bullet = 152 m/s
Speed of wood = 128 m/s
Speed of another bullet = 97 m/s
We need to calculate the speed of plank
Using conservation of momentum
Where,
u = initial velocity
v = final velocity
....(I)
....(II)
From equation(I) and equation(II)
Hence, The speed of the plank is 81.68 m/s
The study of the atom contributed to our understanding of the periodic table of the elements in the following way: experiments that identified characteristics of atoms provided scientists with atomic weights and atomic numbers, which were used to organize the periodic table.
<h3>PERIODIC TABLE:</h3>
The periodic table is an organized table of the chemical elements arranged in order of their atomic number
The periodic table consists of rows called periods and columns called groups. Each element in the periodic table is made up of its own individual atom.
Hence, the experiments conducted on these atoms provided the atomic numbers and masses used as a template to organize each element in the periodic table.
Learn more about atoms at: brainly.com/question/13981855
Answer:
we can't but the 1rst one on right 2nd one on left 3rd one on middle
Explanation:
Hope that helps :D brainliest PLEASE!
the measure of how many a wave passes on a certain point in a certain time is
frequency