Answer: the rarest element is Francium. J is not on the periodic table. also Dmitri Mendeleev proposed the periodic table.
Explanation: Kinda looked the last one up.
Answer:
Yes, Mirror are a surface that reflects light more perfectly than ordinary objects.
Explanation:
It has 5 I hope this helps you
(a) 5.62 m/s²
(b) 5.46 m/s²
The given values are:
mass,
m = 50 kg
angle
= 35°
(a)
If friction neglected,
⇒
(b)
If friction present,
Derived quantities depend on.( fundamental)..........physical quantity
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