Whereas the vast majority of astrophysicists support the big bang theory, many nonscientists consider the theory to be controver
1 answer:
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Answer:
A)
B)
Explanation:
A) Using the Archimedes' force we can find the weight of water displaced:
Where:
: is the weight of the block in the air = 20.1 N
: is the weight of the block in the water = 15.3 N
Now, the mass of the water displaced is:
The volume of the block can be found using the mass of water displaced and the density of the water:
B) The density of the block can be found as follows:
I hope it helps you!
Answer:
,
,
Explanation:
The cube root of the complex number can determined by the following De Moivre's Formula:
Where angles are measured in radians and k represents an integer between and
.
The magnitude of the complex number is and the equivalent angular value is
. The set of cubic roots are, respectively:
k = 0
k = 1
k = 2