Can I get the answer
1 answer:
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Answer:B
Explanation:
Option A:
In the nuclear reactions,neutron can be split into proton an electron.
In this case,the number of protons are increasing,increasing the atomic number.
Hence,the atomic number is not conserved.
Option B:
In any reaction the sum of number of neutrons and number of protons remain constant before and after the reaction.
Option C:
The mass number may change for the atoms.For example emission reduces the atomic number by
Option D:
In the nuclear reactions,neutron can be split into proton an electron.
So,they number of neutrons may change.
Answer:
d = 0.391 m
Explanation:
given,
mass of sled = 18 kg
inclined at an angle of = 28°
kinetic friction between the sled and inclined = 0.25
using energy equation
d = 0.391 m
hence, the distance traveled by the sled is equal to 0.391 m