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Derive an expression to show that for satellites in a circular orbit T² ∝ r ³ where T is the period of orbit and r is the radius of the orbit.

For an object to stay in a steady orbit; F=mv²/r where: F is the force on the object towards the centre of the orbit, m is the mass of the object, v is the radial velocity of the object, and r ...

Answered by James M. • Physics tutor

6032 Views

Discuss the possible effects that mutation can have on the structure and function of a protein (3 marks)

Mutation can result in changes to a proteins primary, secondary and tertiary structure. Deletion mutations and mutations resulting in a new stop codon can result in the <...

Answered by Emma M. • Biology tutor

7201 Views

Lee este texto de la novela de José Martí, Amistad funesta. Complétalo, escogiendo palabras de la lista A – P en la página siguiente. Escribe la letra de la palabra en la casilla.

A K I G H O L J B P
I will show the text during the lesson.

Answered by Kate D. • Spanish tutor

2033 Views

Sketch the function (x^4 + 2x^3 - x -2)/(x+2)

First of all determine the range of the function by looking at its denominator. The function is defined at each point except x=-2 Now to find the zeros o...

Answered by Matteo D. • Maths tutor

3106 Views

In the phrase “Regibus exterminatis, libertas in re publica constituta est”, which type of phrase construction is “regibus exterminatis”?

First of all, notice that the phrase is divided in two parts. The first part contains a name in ablative case, acting as subject, followed by a past participle acting as ...

Answered by Matteo D. • Latin tutor

2353 Views