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Steel has a density of 8030kg/m^3. Show that a steel ball with a diameter of 5cm weighs approximately 5N

Using Weight = mass*gravitational strength

Using: Mass = density * volume

Using Volume = (4/3)pir3

Radius = 2.5cm = 0.025m

Volume = (4/3)pi0.025

SH
Answered by Sameh H. Physics tutor
11982 Views

Generate an array of integers from 0 to 99 and split it into two smaller arrays. Each smaller array will contain half of the original.

Import numpy

originalArray = numpy.range(100)

split1 = originalArray[:len(originalArray)/2] #The use of a :X as an index into an array means that you want all values from the start to the Xt...

SH
Answered by Sameh H. Python tutor
5121 Views

Given that Sin(A) = 1/sqrt(3), show that Tan(A) = 1/sqrt(2)

Using: Tan(x) = Sin(x)/Cos(x)

Using: Cos(x) = sqrt(1-Sin2(x))

Cos(A) = sqrt(1-Sin2(A)) = sqrt(1-1/3) = sqrt(2)/sqrt(3)

Therefore: Tan(A) = Sin(A)/Cos(A) = (1/sqr...

SH
Answered by Sameh H. Maths tutor
3971 Views

How do I go about planning an 'unseen poetry' question?

First off, you are going to want to thoroughly read through and annotate the poem. Read the poem carefully at least twice through to make sure ...

AR
24746 Views

What is the "chain rule"?

The "chain rule" is a handy little tool that we can use to find the derivative of a complicated function.  Specifically, we use the chain rule when we have functions within functions.  But what ...

JF
Answered by Joe F. Maths tutor
3725 Views

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