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What velocity should your boat have if you want to cross a 72m wide river in 6s by the shortest distance, with a 5 m/s downstream current?

Key physics concepts: Velocity vectors, Distance/speed/time relations Key mathematical concepts: Trigonometry, Pythagorean triples, Vector addition/subtraction.Recall that velocity is a vector

Answered by Physics tutor
2017 Views

What are the different types of price discrimination that can be employed?

First-degree price discrimination, alternatively known as perfect price discrimination, occurs when a firm charges a different price for every unit consumed. The firm is able to charge the maximum possibl...

Answered by Economics tutor
2117 Views

What is the difference between public goods and externalities?

Public goods are non-excludable and non-rival - i.e. you cannot be stopped from consuming the good and this does not affect others' consumption
Externalities are benefits/costs to a third party outsi...

NS
2582 Views

What are the patterns of global urbanisation?

Developed countries: more urbanised - 80% of USA population in 2%Developing: growing at a faster rate - Rwanda fastest urbanisation rate in the world: 9%
Leading to problems with waste management, re...

NS
1898 Views

Using your knowledge of osmosis, describe what happens to a red blood cell when they are placed in a beaker of distilled water.

The distilled water is a hypotonic solution and so has a higher water potential than that of the red blood cell. Due to the difference in water potentials, water will move from the beaker into the red blo...

KR
Answered by Karishma R. Biology tutor
16131 Views

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