Answer:
Attracted I believe.
Explanation:
A plastic rod is an insulator if rubbed by say a dish cloth and the "free" electrons from the plastic rod transfer to the cloth then the rod becomes positively charged because of the loss if it's electrons upsetting the balance of positive/negative charge The cloth receiving the electrons becomes negatively charged.
Positive and negative charges attract like when you rub a balloon on your hair and it sticks. Although they both were originally neutral "having the same positive and negative"
the balloon loses some of it's electrons becoming positive whilst your hair becomes negative although they just transferred from each other the two will still attract one another now that their is an unbalance.
to this answer it is drugs because all this stuff you named are substances which are drugs.
Answer:
A warm air rises, water vapour cools and forms a cloud.
Explanation:
Answer:
emission of photon is of maximum wavelength when electron transition is from n = 8 to n = 5
Explanation:
Longest wavelength for the transition means the energy difference in two levels must me minimum
So here we know that the energy of electron in a given level is
now if z = 1 for hydrogen
then Energy of electron for n = 2
Energy of electron for n = 5
Energy of electron for n = 8
Now for least energy difference we can say
So emission of photon is of maximum wavelength when electron transition is from n = 8 to n = 5
How much negative charge has been removed from a positively charged electroscope if it has a charge of 7.5x10-11C?
If C is Coulombs then, −1 C is equivalent to the charge of approximately 6.242×10^18 electrons.
You already gave the answer: -7.5x10–11C
It is like asking: What colour is my white horse?
Now if you want to know how many electrons have been removed, then multiplying the number of electrons in a coulomb by the coulombs you have, you get 4.6815 x 10^8 electrons. Which is almost the same answer as before.