Using the law of conservation of angular momentum, we have
<span>I1 w1 = I2 w2 </span>
<span>ie., m1r^2/2 x w1 = ( m1r^2/2 + m2r^2 ) w2 </span>
<span>ie., new angular velocity w2 = m1 w1 / ( m1+ 2m2) = 125 x 3.1 / ( 125 + 2 x39.5 ) </span>
<span>= 1.8995 = 1.9 rad /sec ( nearly )</span>
It is called condensation
<span>The correct answer is an incident ray. The ray that is reflected is always reflected at the same angle at which the incident ray hits the surface. This of course only applies if it hits a straight surface, since hitting a lense would be different as it might reflect under a different angle or it might not even reflect.</span>
Answer:
2. False :
- An object that is positively charged has a greater positive charge and a lower negative charge.
3. Will be This :
Q.→ TRUE or FALSE: An object that is negatively charged could contain only electrons with <u>no</u> accompanying protons.
Answer → False :
- Negatively charged objects have protons; it's just their number of electrons is greater than their number of protons.
4. False :
- An object that is electrically neutral contains neutrons and the same number of unlike charges, i.e., electrons and protons.