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College selection

When deciding on the choice of college it is imperative that a candidate chooses one which excites them. In order to impress at interview the candidate must really want to go there. Oxford colleges also d...

JS
2031 Views

Explain how change in blood flow to a runner's muscles helps him to run.

An increase in blood flow to the skeletal muscles means that more glucose and oxygen is delivered to the muscles via the blood. These are both needed in aerobic respiration to produce ATP/ energy for musc...

SW
Answered by Susannah W. Biology tutor
15910 Views

A projectile is launched from the ground at a speed of 40ms^-1 at an angle of 30 degrees to the horizontal, where does it land? What is the highest point the projectile reaches?

Since the SUVAT equations of motion act independently in the horizontal and vertical directions we can use the vertical equations to find the total time (the time when total vertical displacement is zero)...

BL
Answered by Ben L. Physics tutor
3119 Views

Describe three ways in which the body maintains its temperature in different climates

The temperature of the body is detected by the thermoregulatory centre in the hypothalamus in the brain, which can detect the temperature of the blood. Therefore it recieves information about changes to t...

VW
Answered by Victoria W. Biology tutor
3685 Views

Explain and draw the mechanism of the nucleophillic substitution reaction between bromoethane and aqueous sodium hydroxide. How is this reaction different to the elimination reaction which may occur?

The d+ carbon on the bromoethane is susceptible to attack by the OH- nucleophile (negative ion with a lone pair)( the lone pair is very important as this carries out the attack!!!).

When the nucleo...

CG
5075 Views

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