Recent content by dukg08

so then: r = GM/((Δλ/λ0)c)2

((Δλ/λ0)c)2 = GM/r ((Δλ/λ0)c)2 x r = GM totally not sure

I'm trying to make r the subject. ((Δλ/λ0)c)2/r = GM r = ((Δλ/λ0)c)2xGM

((Δλ/λ0)c)2 = GM/r So do I multiply the r to both sides now or remove the root? (Δλ/λ0)c = √(GM/r) or ((Δλ/λ0)c)2/r = GM

((Δλ/λ0)c)2 = GM/r

Homework Statement (i) Combine Equations A and B to give a single equation for v and substitute this in place of v in Equation C. (ii) Rearrange your answer to part (i) to make r the subject of the equation.Homework Equations Equation A z = Δλ/λ0 Equation B v = zc For a planet such as the...

Homework Statement (a) Virtually all of the energy used on Earth derives originally from the Sun and solar radiation is intercepted at 1370 W m−2 at the top of the atmosphere, and that 49% of this radiation is absorbed by the Earth’s surface. Assuming that a shallow dish containing ice or...

thats what I'm working on :) It's all to do with waves I think

so the following: (i) The user turns a handle that winds a metal spring onto a spool. - chemical energy in the body to kinetic energy in turning the handle to spring potential energy (ii) The metal spring then unwinds slowly, through a number of gears, rapidly turning the spindle of a...

So the battery would be ‘stored electrical energy’? What is the generator then? (iv) can’t be right if the battery is ‘stored electrical energy’ can it? Is (iii) the wrong way round?

so would this be better: (i) The user turns a handle that winds a metal spring onto a spool. - chemical energy in the body to kinetic energy in turning the handle to spring potential energy (ii) The metal spring then unwinds slowly, through a number of gears, rapidly turning the spindle of...

Homework Statement (a) The wind-up radio is a wonderful example of the process of energy transformation from one type to another. The radio is operated as follows: (i) The user turns a handle that winds a metal spring onto a spool. (ii) The metal spring then unwinds slowly, through a...