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Do we have a moral obligation to protect the weak globally?

If faced with this at interview, the first thing to do is BREATHE! You aren't going to come up with a well thought through answer if you panic and blurt out the first thing that comes into your head. The ...

Answered by Priya E. • Oxbridge Preparation tutor

1890 Views

Explain how an acceleration-displacement graph could be used to determine the frequency of oscillation of a metal plate.

Acceleration (A)= Angular Velocity² (w²)Displacement (x)Angular Displacement= 2piFrequency (f)Gradient= A/x = w² = [2pi*f]²Rearrange the equation to g...

Answered by Tise O. • Physics tutor

9171 Views

Find the equation of the line through the following points: (-2, -3) and (1, 5)

Note the formula: y - y₁ = m(x - x₁)x, y, x_1,y₁ refer to the values of your given coordinates. 'm' symbolises the gradient of the line you are asked to findRe...

Answered by Tise O. • Maths tutor

3490 Views

Describe the similarities and differences between the processes of osmosis and diffusion

Similarities:Both processes are passive (do not require energy)In both processes molecules move from an area of high concentration to low concentration and therefore down a concentration gradient.Differen...

Answered by Grace H. • Biology tutor

8353 Views

Solve the equation 18x^2-3x=6

First put the equation into the correct form by setting it to 0:18x^2-3x-6=0Look for the common factor in the equation and take it out:3(6x^2-x-2)Using the grid method (which I would show on whiteboard) f...

Answered by Grace H. • Maths tutor

5026 Views