Top answers

Find the GS to the following 2nd ODE: d^2y/dx^2 + 3(dy/dx) + 2 = 0

Set up the auxiliary equation by letting (dy/dx) = m So we have: m 2 + 3m + 2 = 0 Solve for m and we get: (m+1)(m+2) = 0Therefore, m 1 =-1 and m 2 =-2 Now we see we have 2 different real numbers as the solut...
IG
2711 Views

How can you tell if a reaction is feasible and what factors contribute towards this?

A reaction is said to be feasible or spontaneous when the Gibbs Free Energy ( Delta G) of the reaction is <0. Conversely, when the Gibbs Free Energy ( Delta G) of the reaction is >0, a reaction is said...
JR
Answered by Jamie R. • Chemistry tutor
19594 Views

How do I structure my essay?

This is such a commonly asked question, that I rarely address much else in my first lesson. Structuring essays is overwhelming, especially when you are comparing two literary works, looking to show off what ...
AM
4060 Views

3 teas and 2 coffees have a total cost of £7.80. 5 teas and 4 coffees have a total cost of £14.20. Work out the cost of one tea and the cost of one coffee.

This is a typical simultaneous equations question. Using the information in the question we can write down two equations in two unknowns (let's say T=tea and C=coffee).(1) 3T + 2C = £7.80(2) 5T + 4C = £14.20...
EP
Answered by Emily P. • Maths tutor
10022 Views

how do you work out the gradient and point of interception of a linear graph given some coordinates

plot the coordinates to obtain a straight line graphcalculate the gradient by using the equation m=change in y/change in xfind the point of interception by seeing where the line crosses the y axis, where x=0
KP
Answered by Katrina P. • Maths tutor
3017 Views