Answer:
(c) in the barrel of the rifle
Explanation:
When we are moving in a convertible with constant speed so as per inertia all the objects are moving with same speed as that the speed of convertible.
So here we can say that bullet when shot from the rifle then its speed is same as that of convertible in horizontal direction
So here we can say that if air friction is absent then bullet will move same horizontal distance as the distance moved by you in the convertible
so after it it will reach again at the same position then the displacement of you and bullet is same in horizontal direction so we can say that correct answer will be
(c) in the barrel of the rifle
A blue flame is a manifestation that the combustion process is complete where there are no formation of carbon monoxide. On the other hand, a yellow flame represents an in complete combustion. Generally, a blue flame is much hotter as compared to a yellow flame so it heat things up faster. Also, it is a much cleaner flame as it does not produce soot which leaves a black residue on the material being heated.
Answer: B) 33 amu
Explanation:
According to the table, the mass of a proton is 1.0073 amu and the mass of a neutron is 1.0087 amu.
To find the mass, we have to perform the following calculation:
<em>15 x 1.0073 + 18 x 1.0087 = 33.2661 amu</em>
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<em>Rounding up, the approximate mass of the nucleus is 33 amu.</em>
