A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs.
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Answer:
Explanation:
Given that,
Mass of the amber bead, m = 12.6 g = 0.0126 kg
Charge on the bead,
The electric field due to infinite large plastic sheet is given by :
At equilibrium, q E = m g
where
is the charge per unit area on the glass sheet.
So, the charge per unit area on the glass sheet is (). Hence, this is the required solution.
D. Nebulas is a cloud of dust,
B. Protostars & A. Cepheid variables have longer pulsation periods.
Whereas, C. RR Lyrae variables have pulsation periods between 1.5 hours and 1.2 days. So the answer is C.
Answer:
Physics is the science of matter and how matter interacts.
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Because Na⁺ ion lacks an electron and O²⁻ has two extra electrons extra, to balance the charge, we need 2 Na⁺ ions.
All ions, atoms and molecules want to get to the minimum energy state, and that state is when the ion, atom, or molecule is neutral, that's why all of them want to balance their charges.