Top answers

How does a hydraulic jack work and how do I work out the pressures involved?

(Draw hydraulic jack diagram using Pen tool) Firstly, we need the quation for pressure. Pressure is measured in Nm^2 which tells us that P=F/A. Where P is the pressure, F is the force in Newtons and A is the...
MZ
Answered by Max Z. • Physics tutor
6687 Views

What is the difference between a vector and a scalar?

A vector is a measurement of something that has more than 1 number associated with it, for example velocity. I can tell you how fast a car is going using the magnitude of velocity, speed, and I can tell you ...
MZ
Answered by Max Z. • Physics tutor
4457 Views

What does it mean for a function to have one to one mapping?

One to one mapping means is that there's only one value you could insert into the function that would give you a certain output. f(x) = 2x+1 is an example of one to one mapping where 3, for example, is the o...
JM
Answered by Joshua M. • Maths tutor
13299 Views

How do you solve linear inequalities such as: 5x – 2 > 3x + 11

Firstly, I would ask the student if they knew what the first step was. If they did not know, I would suggest that they need to get all the x's on one side of the equation and all the numbers on one side. I w...
MZ
Answered by Max Z. • Maths tutor
4520 Views

How does the contemporary study at to our knowledge and understanding of the psychodynamic area?

What did the old study teach us: Freud taught us how our unconcious can cause disorders such as phobia's, through implementing defence mechanisms to protect our ego, this meant that displacement and projecti...
EF
Answered by Emily F. • Psychology tutor
2288 Views