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How are specialised cells different to normal body cells?

Different parts of the body have very different functions, so it is important that the cells in these different parts have adapted in order to help the functioning to be more efficient.

F...

Answered by Sherrie J. • Biology tutor

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A rocket travels at 500m/s two minutes after its take-off. If it was initially stationary, calculate its acceleration. If the rocket has a mass of 1800kg, what force is required to give it an acceleration of 2m/s^2?

a) Acceleration is the rate of change of velocity of an object

In this case, the equation that we will use to calculate it is

a = (v - u )/ t

Answered by Dhrushee S. • Physics tutor

5238 Views

How do you differentiate x^x?

There are two ways we can find the derivative of x^x.

It's important to notice that this function is neither a power function of the form x^k nor an exponential function of the form b^x, so we...

Answered by Alina K. • Maths tutor

397277 Views

How do I solve simultaneous equations?

Always follow the same three steps : equating – substracting – substituting but you can have different cases :

Case 1: we only need to multi...

Answered by Roxane Z. • Maths tutor

5230 Views

Can you help me understand adjective agreements please?

Adjective AgreementsThe following are simple points to remember in order to avoid losing marks in an exam for forgetting to make adjectives agree. It is important ...

Answered by Carolyn E. • French tutor

4761 Views