If a radioactive atom emits a beta particle, Its mass num...
If a radioactive atom emits a beta particle, Its mass number
increases by one
remains the same
decreases by one
increases by two
Correct answer is B
No explanation has been provided for this answer.
An 800 kg car moving at 80 km hr−1 collides with a 1200 kg car moving at 40 km hr−1&nb...
When the temperature of a liquid increases, its surface tension ...
A metal rod has a length of 100cm at 200oC. At what temperature will its length be 99.4cm. If t...
The period of an oscillatory motion is defined as the ...
From the diagram above, calculate the energy stored in the capacitor ...
The pressure exerted by a given mass of gas in a container ...