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The maximum capacity of a glass box is 1900cm^3. A cylindrical cup of radius 4cm and height 10cm is filled to the top with water. The water is then poured into the rectangular container. How many full cups are needed to fill the box with water completely?

First, draw a diagram of the information given, making sure to label any capacities and dimensions. Now read the question again and find what it’s asking for, which is how many full cylindrical cups can fill...
WA
Answered by Waliyyah A. • Maths tutor
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There is a quarter circle with radius 8cm, what is the area of the quarter circle. The answer should be given in terms of pi, units are cm^2.

The area of a circle is given by the equation: A = pi r 2 where r is the radiusThis means the area of the quarter circle is just 1/4 th the area of the total circle.Therefore the area of the quarter circle i...
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Answered by Shrey C. • Maths tutor
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Why does the first ionisation energy generally increase across a period? Explain why there are dips in energy between groups 2 and 3 and groups 5 and 6?

1st ionisation energy increases across a period as nucleus gets more positive, no further increase in shielding due to electrons being added to same shell, atomic radius decreases, attraction between nucleus...
Answered by • Chemistry tutor
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How do I approach an unseen poem in an exam?

Although unseen poetry can seem daunting, I believe by developing and practising a structured approach, critically analysing unseen poetry will become second nature to the student. I like to emphasise the fa...
Answered by • English Literature tutor
5082 Views

How does antibiotic resistance arise?

Bacteria replicate by binary fission, at a rate of up to one division every 20 minutes. This replication results in genetically identical daughter bacteria to the original, however with each round of genome ...
IT
Answered by Izzy T. • Biology tutor
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