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A 10m long uniform beam is pivoted in its centre. A 30kg point mass is placed on one end of the beam. Where must a 50kg mass be placed in order to balance the beam?

For this question, we will use moments. A moment is defined as:Moment = force x perpendicular distance from pivotHere, the moment of the 30kg mass which acts anti-clockwise through the pi...

JM
Answered by Joseph M. Physics tutor
3023 Views

What is the law of demand?

The law of demand is a law which compares the price and quantity of a good. There is a negative correlation and therefore as price incases the quantity demanded of a good decrease. The reason for this is ...

JR
Answered by Joao R. Economics tutor
1688 Views

Describe 3 differences between animal cells and plant cells

Plant cells all have a cell wall but animal cells do not. Plant cells contain chloroplasts but animals cells do not. Plant cells have one large central vacuole whereas animal cells do not (they have multi...

AL
Answered by Amirah L. Biology tutor
2916 Views

Should referendums be used more widely?

A referendum is a vote in which the electorate can express a view on a specific issue, rather than merely relying on the decision of the MP representing them, hence making it a form of direct democracy. T...

GF
Answered by Georgia F. Politics tutor
5537 Views

"What ethical perspectives most inform your view of how doctors should act?"

Medicine is an inherently moral enterprise. The doctor’s primary duty is to do the best they can for their patient by acting in the patient’s best interests.Kantian deontological theories can be applied h...

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1426 Views

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