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Describe, using a diagram, the forces acting on the system of an object tethered to a string, rotating around a fixed point in free space. Will the string ever become horizontal?

Firstly, I would start by drawing a diagram of the system on the whiteboard, showing the object attached to the string, and the string at a fixed point. I would show using arrows that the object was rotating...
SS
Answered by Simon S. • Physics tutor
4903 Views

What should I know for my interview in Maths?

Well, this is a great question that almost every oxbrige applicant will ask. However, I am sure that for every person you ask, you will get a different answer. That's because there is no set syllabus, as in ...
JB
2111 Views

In terms of ecological pyramids, how can pyramids of numbers sometimes be a different shape from pyramids of biomass, even for the same food chain?

Ecological pyramids are a way of visualizing a food chain, either with the mass of organisms or the total number of the population of organims at each stage of the food chain. Pyramids of biomass are always ...
RN
Answered by Robynne N. • Biology tutor
18933 Views

Find the general solution of 2 dy/dx - 5y = 10x

Try y=Ae bx diffrentiate this (dy/dx = Abe bx ) and sub into 2dy/dx -5y = 0 to find complementary function. 2Abe bx - 5Ae bx = 0 2b - 5 = 0 b = 2.5 Find the particular integral using trial solution y = Cx+D,...
AH
Answered by Amy H. • Maths tutor
5418 Views

Solve the equation for x: 3x^2 -5 = 22

x =3 or x= -3
RM
Answered by Rachel M. • Maths tutor
3859 Views