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A spacecraft needs to be slowed down from a speed of 96m/s to 8.2m/s. This can be done by firing an object as the spacecraft is moving. If the mass of the spacecraft is 6730kg and the object is 50kg, calculate the velocity of the ejected object.

As we have there is object being fired out of the front of the spaceship we know the ship will have a lower velocity than before using the conversation of momentum. "The total momentum of a system is...

BQ
Answered by Ben Q. • Physics tutor
2329 Views

What are the key roles of the House of Lords?

The House of Lords has 5 main roles: legislative, scrutiny, legitimating, deliberation and recriutment. However the first two are the most important. 

The legislative role is carried out through in...

CM
3175 Views

How do I sketch accurate graphs for rational functions in a short amount of time? (I.e. A step by step guide of sketching graphs)

Often in Further Pure modules for various exam boards a common question in the exam paper will be to sketch a graph for a rational function. The step by step aproach I used is as follows:

  1. DH
    2981 Views

Explain, in general, how a catalyst works

A catalyst is a material that can speed up a reaction, but reamins chemically unchanged at the end of the reaction. A catalyst works by providing the reactants an alternative rout...

CL
Answered by Chung L. • Chemistry tutor
10759 Views

Examine the view that the poems in "Tipperary Days" are unfailingly positive about war.

’Rendezvous’ by Alan Seeger is not unfailingly positive about the war, but does romanticise it. The idea of the speaker ‘hav[ing] a rendezvous with Death’ clearly presents the fact that many soldiers beli...

AH
5582 Views

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