Nitrogen has a atomic mass of 14 and a atomic of number of 7 so the number of neutrons must be ?
2 answers:
Answer:
There are 7 neutrons
Explanation:
One way that I remember how to find protons, electrons, and neutrons, is that the protons are equal to the atomic number, the number of electrons is equal to the number of protons, and the neutrons are equal to the atomic mass minus the atomic number.
<em>THE</em> <em> </em> <em>NUMBER</em> <em> </em> <em>OF</em> <em> </em> <em>NEUTRONS</em> <em> </em> <em>MUST</em> <em> </em> <em>BE</em> <em> </em> <em>7</em> <em>.</em>
<em>Hope</em> <em> </em> <em>this</em> <em> </em> <em>will</em> <em> </em> <em>help</em> <em> </em> <em>u</em> <em>.</em> <em>.</em> <em>.</em>
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Answer:8.968 N-m
Explanation:
Given
Length of arm=0.152 m
Downward force=118 N
angle made by arm with vertical
Force can be divided into two components
It's sin component will contribute towards torque while cos component will not contibute
T=8.968 N-m
Answer:
Since it is falling freely, the only force on it is its weight, w.
w = m × g = 250 kg × 9.8 m/s^2 = 2450 Newton/N
A.is an example of decomposition reaction.
Answer:
f=force m=mass and a=acceleration
Answer:
18.60 m/s
Explanation:
Original momentum = mv = 4000 with m = 115
after collision m = 115 + 100 = 215 kg
but the total momentum is still the same (conserved)
4000 = 215 v shows v = 18.60 m/s
