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The mass of the Earth is 6.0x10^24 kg and its radius is 6.4x10^6m, calculate the orbital speed of the moon around the earth, the orbit of the moon is a circle of approximate radius of 60R where R is the radius of the earth and a mass m.

M=6.0x1024kg create info list of information given in the question converting all values to SI unitsR=6.4x106mF=GMm/r2 F=mv2/r write down any neces...

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Answered by Emma D. Physics tutor
7374 Views

Find values for x and y from two simultaneous equations: 2x + y = 5 and 3x + y = 7

Rearrange one of the equations to make y the subject:y = 5 - 2x Substitute y into the other equation: 3x + 5 - 2x = 7 x = 2 y = 5 - (2 x 2) y = 1

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Answered by Marco V. Maths tutor
3459 Views

How do you form the preterite tense in Spanish?

For a regular Spanish '-ar' verb, for example 'hablar' - to speak, we remove the -ar ending and replace it with the endings as follows:I - éyou - astehe/she - ówe - amosyou (pl.) - asteisthey - aronThe st...

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Answered by Alexander B. Spanish tutor
1924 Views

Describe the function of one hormone in human behaviour

The hormone oxytocin is produced by the hypothalamus and released into the bloodstream through the pituitary gland and into the brain where it attaches to oxytocin receptors. Oxytocin has been associated ...

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Answered by Alexia O. Psychology tutor
5494 Views

AQA 2017 Topic 2 question b (actual): Two reasons why parliament shouldn't be considered 'irrelavant and all but powerless in the legislative process'.

As this question is worth 10 marks, I would advise briefly introducing your answer with a quick quote that outlines your position followed by stating the two points your are to back up your answer with. F...

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Answered by Oliver S. Politics tutor
2044 Views

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