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How do you work out the work out the current through resistors in parallel?

[I would use the whiteboard to draw diagrams as I was talking]
A good analogy for circuits is that of water pipes. The wires are nice wide pipes with no resistance to flow. Resistors are sections of ...

Answered by • Physics tutor

1549 Views

Why will antibiotics not cure the flu? Why should they not be overused?

The Flu is caused by the Rhinovirus. Antibiotics can only kill bacteria not viruses as viruses have different machinery to survive and replicate. Antibiotics have nothing to target in Viruses. Overuse of...

Answered by • Biology tutor

2063 Views

A cannon at ground level is firing at a fort 200m away with 20m high walls. It aims at an angle 30 degrees above the horizontal and fires cannonballs at 50m/s. Assuming no air resistance, will the cannonballs fall short, hit the walls or enter the fort?

solving horizontally, use v=s/t, where s=200, v=25(3)^1/2. Hence t=s/v=8/(3)^1/2 (where t is the time when the ball would reach the fort if it does not reach the ground)Solivng vertica...

Answered by • Maths tutor

2618 Views

How should I structure my answer to a purposive writing question? (e.g. writing a speech, letter or article)

The most important thing to remember is that this type of question is testing your ability to write a clear and organised piece. Naturally, it is important to write in the correct form (framing your lette...

Answered by Emilie D. • English tutor

1460 Views

List and briefly explain the two main mechanisms by which mammalian genes can be exchanged or 'translocated' between chromosomes. What are the importance of these types of recombination? (8 marks)

i. Homologous Recombination. A conservative, error-free DNA replication pathway that mainly allows for the repair of DNA under duress and also for the resetting of replication forks. The pathway is regula...

Answered by Benjamin A. • Biology tutor

1995 Views