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A jug containing 0.250 kg of liquid is put into a refrigerator. Its temperature decreased from 20°C to 15°C. The amount of energy transferred from the liquid was 5,250 J. Calculate the specific heat capacity of the liquid.

Using the equation Q = mcT, where Q represents energy in Joules, m represents mass in kg, c represents specific heat capacity measure in joules kg -1 K -1 and lastly, T represents the change in temperature i...
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Answered by Andrew S. • Physics tutor
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Solve algebraically: 1) 6a + b = 16, 2) 5a - 2b = 19

Firstly multiply the first equation by 2 resulting in the equation 12a + 2b = 32. Following this, add the first equation to the second equation, this will result in the 2b cancelling out with just 17a = 51. ...
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Answered by Andrew S. • Maths tutor
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What are the advantages of saltatory conduction?

· The myelin sheath means that action potentials can occur only at the gaps between the Schwann cells that make up the myelin sheath.· Effectively the action potential jumps from one node of Ranvier to the n...
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Answered by Natalia S. • Biology tutor
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What is saltatory conduction?

· Myelin sheath is an insulating layer of fatty material, composed of Schwann cells wrapped tightly around the neurone.· Sodium and potassium ions cannot diffuse through this fatty layer.· In between the Sch...
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Answered by Natalia S. • Biology tutor
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How might I write an answer to the question 'Explore how the prologue to Romeo and Juliet introduces the theme of violence in the play?'

The prologue, a fourteen-line sonnet, introduces the theme of violence between two families through the imagery of bloody hands: ‘where civil blood makes civil hands unclean’. The fact that blood will be sta...
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