Then why is Plankton at the bottom of the ocean in a bucket?
Answer:
K.E. = 1/2mv^2
Explanation:
v is velocity (a vector) not speed (a scalar) but they have the same magnitude
Answer:
The sphere is positively charged
Explanation:
This is because when the positively charged rod is brought near the metal rod A, the electrons in metal rod A and sphere B are attracted towards it into metal rod A while the positive charges in the are repelled into sphere B. So, when the charged rod is withdrawn, and metal rod A and sphere B are separated, metal rod A is now negatively charged, but sphere B is positively charged.
So, sphere B is positively charged.
I would say c hope it helps:)