MCQ
A neutron exerts a force on a proton which is:
- AElectromagnetic.
- BNuclear.
- CGravitational.
- DWeak.
Explanation:
The gravitational forces are due to their masses in addition to nuclear forces inside the nucleus.
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$\text{y}=\text{a}\sin\omega\text{t}+\text{b}\cos\omega\text{t}$

