Answer:
a) this stone was first called Schorl stone
b)the first modern name for this mineral was Black tourmaline
Explanation:
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Answer:
B'= 3.333 B
Explanation:
Lets take
Initial area = A
Magnetic field = B
The area after compression
A'=0.3 A
Magnetic field = B'
We know that flux ,Ф
Ф = B A
Given that flux is constant so
B A = B' A'
B A=B' x 0.3 A
B'= 3.333 B
It means that magnetic field will increase.
Answer:
B) Blackbody radiation
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Answer:
all scenarios are using the same power
Explanation:
we know that power is defined as P(Watts)=W(Joules)/t(seconds).
When applying this formula to each of the scenarios we find:
Done
