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The Σ0 baryon, composed of the quark combination uds, is produced through the strong interaction between a π+ meson and a neutron. π+ + n →Σ0 + X What is the quark composition of X?

Multiple choice answers:A: u s-barB: u dC: u d-barD: u d s-barThis question requires you to have memorised:the quark content of a neutron and all the pions,that strangeness number and baryon number are conse...
Answered by • Physics tutor
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Explain the nervous pathway reflex when touching something hot (5 marks)

The stimulus/heat is detected by receptors in the hand It sends an impulse via sensory neurones to the spinal cord/CNSChemicals are transmitted via the synapses and diffuses across the gap The impulses trave...
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Answered by Lia H. • Biology tutor
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What is the most effective way to prioritise what you need to learn or revise for in the exam?

The chief mistake made here is in believing that a History A-Level exam is about how much you know. If this were true, exams would be a blank time-line for you to fill in. Instead, you must remember that an ...
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Answered by Sam C. • History tutor
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Discuss how kingship is represented in Macbeth

Macbeth and Duncan are compared to one another in Macbeth in terms of their suitability to be king. In the Holinshed chronicles Duncan is figured as unable to rule effectively, and Shakespeare uses this in A...
Answered by • English Literature tutor
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How does William Golding explore human brutality in 'Lord of the Flies'?

Character juxtaposition: Golding juxtaposes the characters of Ralph and Jack in order to demonstrate man's capacity for brutality and cruelty. Ralph's actions in the first half of the novel are guided by not...
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