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What provides the centripetal force on a satellite and what are the factors that determine the size of the centripetal force on the satellite

Centripetal Force = (mv^2)/r The centripetal force must always act towards the centre of the circle in which the satellite is travelling. Therefore it is a attractive force from the Earth and hence gravitati...
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Answered by Namita H. • Physics tutor
13716 Views

Why would the simple diffusion of chloride ions across a cell membrane be extremely slow?

There are differnet ways that substances can move across a cell surface; simple diffusion, facilitated diffusion, osmosis or active transport. Most substances can move across the cell membrane via simple dif...
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Answered by Jess B. • Biology tutor
42300 Views

Solve 6x-5 > 4x+13

6x - 5 > 4x + 13 (Take away 4x from each side) 2x - 5 > 13 (Add 5 to each side) 2x > 18 (Divide both sides by 2) x > 9
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Answered by Namita H. • Maths tutor
7281 Views

Solve the equation 3x^2/3 + x^1/3 − 2 = 0

Let u = x^1/3 The equation can therefore be written as: 3u^2+u-2=0 This can be factorised to: (3u-2)(u+1)+0 Therefore: u = 2/3 or u = -1 OR x^1/3 = 2/3 or x^1/3 = -1 So: x = (2/3)^3 or x = (-1)^3 x = 8/27 or...
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Answered by Namita H. • Maths tutor
10420 Views

How many thirds are there in eight?

Whilst this question seems complicated because numbers have been thrown in with words it is infact a simple question. There are 3 thirds in one. 1/3 + 1/3 + 1/3 = 1 Therefore there are 8 x 3 thirds in 8 8 x ...
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Answered by Tori F. • Maths tutor
26664 Views