Answer:
A. 19.8 cm.
Explanation:
The apparent depth of the combination is
As it mentioned that the two clear but non-mixing liquid having depth of 15 cm that placed in a glass container together
Also the refractive indices would be 1.75 and 1.33
Based on the above information
As we know that
Refractive indices = real depth ÷ apparent depth
1.33 ÷ 1.75 = 15 ÷ apparent depth
So, it would be 19.736842 cm
Now the combination of apparent depth would be
= ( 19.736842 + 15) ÷ (1.75)
= 19.8 cm
hence, the correct option is A.
Answer:
Explanation:
Hi!
In a (x, y) coordinate representation, the two forces are:
The sum of the two forces is:
The angle to x-axis is calculated using arctan:
The magnitude is:
Hello! I am not that good at these things but I think that the answer is A
(2nd variant, 7kg is 3 times faster than 21kg)
The electrical charge of an election is negative!
One electron<span> itself has a negative </span>charge<span> of 1.6021766208 × 10 </span>−19<span> coulomb.
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Message me if you have any further questions!