Actually, alpha-particle is nothing but a "Nucleus of a Helium atom"
It is emitted by some radioactive substances, originally regarded as a ray
Hope this helps!
They travel like waves. Just throw rock at lake you will see wave. When it bumps to barrier barrier reflects some part of it . Not like a line lika a wave
Answer:
which is the most suitable place for growing large amounts of sugar cane
Answer:
Please refer to the figure.
q1 is a negative charge, and q2 and q3 are positive charges. So, the force exerted by q1 on q3 is attractive, and the force exerted by q2 on q3 is repulsive, which means F13 is directed towards left, and F23 is also directed towards left.
The net force on q3 is the sum of these two forces:
Since both forces are directed towards left, their sign should be negative.