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A satellite is in a stationary orbit above a planet of mass 8.9 x 10^25 kg and period of rotation 1.2 x 10^5 s. Calculate the radius of the satellite's orbit from the centre of the planet.

A body in a stationary orbit will always remain above the same point on the planet as it orbits. For a body to be in such an orbit, it must rotate around the planet in the same direction as the spin of...

DA
Answered by Dorian A. Physics tutor
4042 Views

How do you use Pythagoras' Theorem?

Pythagoras' Theorem states that h2 = a+ b2 . This is where you have...

RB
Answered by Ryan B. Maths tutor
4819 Views

How do I do a close reading of a poem?

In order to close read a poem, I would recommend reading the poem over a few times, and to start with highlighting anything that stands out to you. This could include alliteration, capitalisation of words...

MT
6080 Views

How do you find the minimum of the equation sin^2(x) + 4sin(x)?

The first step to solving this problem is to treat it as a normal quadratic equation; if you are struggling with comparing our equation to a normal quadratic, try substituting sin(x) = y into the equat...

KS
Answered by Kirsten S. Maths tutor
5086 Views

Explain how voltage-gated sodium ion channels on the membranes of neurones generate an action potential.

At rest there is a difference in the concentration of sodium ions (Na+) across the membrane of the neurone.

Outside the neurone in the extracellular fluid (ECF) the concentration of Na+ i...

AH
8855 Views

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