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Newton's Law of Gravitation states: F=GMm/r^2, where G is the gravitational constant (6.67×10−11m^3kg^−1s^−2). Kepler's Third Law, states t^2=kR^3. The mass of the sun is 1.99x10^30kg. Find the value of k and its units

F=GMm/r 2 =mv 2 /r, v=2pir/t equating the two values for F and remembering to include the equation for v, GMm/r^2 = m(2pir/t ^2)^2/r. Rearranging to find t^2, t^2 = 4pi^2r^3/GM where 4pi^2/GM equals the cons...
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Answered by Sam B. • Physics tutor
17838 Views

What is the effect of sibilance

This depends on the content of the quote. First think about what the quote is actually saying. Is it something threatening? Is it describing something beautiful, or something quiet? The repeated s sound inte...
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Answered by Annoushka C. • English tutor
52177 Views

How does longshore drift take place?

Longshore drift takes place as waves hit the beach at an angle. In the UK, the prevailing wind direction is SW so waves hit the beach at an angle from the South West. Waves carry sediment and pebbles through...
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Answered by Sarah L. • Geography tutor
3439 Views

Practice Italian conversation

In any language verbal communication skills are essential. The best way to develop these skills is to have conversations with native speakers. In this way students develop listening, comprehension and speaki...
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Answered by Giorgio C. • Italian tutor
3745 Views

Correcting Italian to English and English to Italian translations

Part of the A-Level and IB examinations are based on translation skills. Therefore I would be able to assist students in their translations making them understand when it is possible to do a word by word tra...
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Answered by Giorgio C. • Italian tutor
2154 Views