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What would you expect to be the output of the following code snippet: `a = [1, 2, 3]; b = a; b[1] = 4; print(a); print(b);`, and why?

a = [1, 2, 3] b = a b[1] = 4 print(a) print(b) The output of this would be:[1, 4, 3] [1, 4, 3] This occurs because lists in Python are pass-by-reference, rather than pass-by-value. What this means is that...

IQ
Answered by Ibrahim Q. Python tutor
2495 Views

Why are fringes are formed in the Young double slit experiment?

In the Young double slit experiment, coherent light of wavelength λ from a single source illuminates a system of two slits separated from each other by a small distance a. Each slit causes the light enter...

JP
Answered by Joe P. Physics tutor
9884 Views

Make r the subject of the formula x = (3r - 4)/5

Multiply both sides by 5: 5x = 3r - 4Add 4 to both sides: 5x + 4 = 3rDivide both sides by 3: (5x + 4)/3 = r

OM
Answered by Oskar M. Maths tutor
2708 Views

The radius of a hemisphere and the radius of a cylinder are equal. The hemisphere and cylinder have equal volume. Calculate the ratio of the height of the cylinder and the radius of the cylinder.

Let radius of cylinder be r. Let height of cylinder be h. We know that the volumes of the hemisphere and cylinder are equal:2(pi)r3/3 = h(pi)r2.Multiplying both sides by 3 and dividi...

OM
Answered by Oskar M. Maths tutor
7414 Views

How should you structure a question worth 8 marks?

8 marks can be achieved through two well-developed, equal paragraphs, each earning 4 marks.The first step is a direct answer: at the beginning of each paragraph the student should give a 'first-sentence a...

MK
Answered by Marcus K. History tutor
4039 Views

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