Top answers

How do I do well in the UCAT?

The UCAT is very different to A levels or GCSEs. Whilst these exams are ones you may have to revise a lot of content for, success in the UCAT comes from practice and having the right exam techniques. Each of...
TS
Answered by Tanya S. • UCAT tutor
2101 Views

Explain how sucrose is transported from the phloem to the sieve tube element. (5)

Protons are actively transported using ATP out of the companion cell into the cell wall , creating an electrochemical gradient. These protons then re-enter the cell by facilitated diffusion through a co-tran...
SW
Answered by Sally W. • Biology tutor
21558 Views

Use factorisation to simplify the following expression (x^2-9)/(x^2-4x+3)

we simplify the top and bottom of the fraction separately. x^2-9 factorises to (x+3)(x-3) using the difference of two squares.x^2-4x+3 factorises to (x-1)(x-3). So the above formula simplifies to (x+3)/(x-1)
JL
Answered by Jack L. • Maths tutor
5122 Views

A baseball player strikes a ball with an initial velocity of 43ms^-1 at an angle of 32° to the horizontal. How far does the ball travel horizontally in 4 seconds?

Since the Initial velocity has a direction that is 32° to the horizontal we can split the velocity into it's components. The horizontal component of the velocity is v x = 43cos(32) (m/s). Since distance = ve...
JL
Answered by Jack L. • Physics tutor
2258 Views

A right-angled triangle has one angle size 60 degrees, and hypotenuse of length 32cm. Calculate the length of the side opposite the 60 degree angle, to 3sf.

Firstly, we want to draw out the triangle. No matter what the question asks, just draw out all the information you're given so that you can see what the question is asking. We've been given a right angle tri...
BR
Answered by Benjamin R. • Maths tutor
7038 Views