Search our library of homework questions

Top answers

All subjects

All levels

An object with weight w is suspended from two strings at angles θ1 and θ2 to the vertical and with tensions T1 and T2. How would you resolve the vertical and horizontal forces?

Horizontal: T1 sin θ1 = T2 sin θ2Vertical: T1 cos θ1 + T2 cos θ2 = w

3740 Views

Find the stationary points of y = x^3 -3x^2 - 9x +5

A stationary point is a point where dy/dx = 0.First we need to find dy/dx. This is done by differentiating y term by term to get dy/dx = 3x^2 - 6x - 9.Setting this equal to zero, we need to solve 3x^2 - 6...

Answered by Adam S. • Maths tutor

5963 Views

Make x the subject 2x+3=3x-1

rearrange by taking away 2 and adding 1

Answered by Katherine A. • Maths tutor

2840 Views

Find the values of x: x^2 + 14x + 22 = 4x -2

x² + 14x + 22 = 4x -2
1) First you should arrange the equation into the format ax² + bc + c = 0. This gives x² + 10x + 24 =02) Factorise into (x+n)(x+m) = 0. To work...

Answered by Gemma M. • Maths tutor

3027 Views

Define Photosynthesis

Photosynthesis is the process by which plants convert carbon dioxide and water into glucose and oxygen using light. To do this plants need chlorophyll.

Answered by James S. • Biology tutor

5024 Views