Answer: People know that they jap e learned by their mistakes or by someone ya being them something
B) It’s material moves due to convection currents.
Answer:
Part a) 
Part b) 
Explanation:
Part a) what is its frequency, in rev/s
we have that
An old-fashioned LP record rotates at 33 1/3 RPM
so

Convert mixed number to an improper fraction

Remember that

Convert rev/min to rev/sec

Simplify

Part b) what is it period, in seconds
we know that
The period is the reciprocal of the frequency
therefore
the frequency is

Answer:
The wire would stick to the magnet????????????????????????
Explanation:
Answer:
its will explode because it's like a soda with baking soda added together and you shake it the small hole can make a huge explosion