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A yacht is sailing through water that is flowing due west at 2m/s. The velocity of the yacht relative to the water is 6m/s due south. The yacht has a resultant velocity of V m/s on a bearing of theta. Find V and theta

First we make a sketch of the situation. Then we notice that V can be found by using Pythagoras. Finally, we find theta using the definition of a tan.
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Answered by Kestutis G. • Physics tutor
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Find the values of x for the equation: x^2 - 8x = 105

When presented with an equation that involves x^2, it is likely to be a quadratic equation. This leads us to rearrange to the equation above into the form of ax^2 + b + c = 0. Therefore the equation can be r...
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Answered by Dhulaxy M. • Maths tutor
6959 Views

What are causes of exchange rate fluctuations?

Causes of exchange rate fluctuations: - short term - changes in the demand and supply of the currency in the FOREX markets. (mainly due to speculations). - longer term - exports, imports, capital flows - tha...
JR
Answered by Julia R. • Economics tutor
7752 Views

What is inflation and how does it come from supply or demand side?

Inflation - a situation in which the general level of prices in the economy is rising. Cause: money supply that grows too quickly. supply —> Prices and value of money are inversely related . I.e. money sh...
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Answered by Julia R. • Economics tutor
2986 Views

What is diminishing marginal utility?

Diminishing marginal utility- each additional (marginal) piece of pizza brings less utility than the previous one. Therefore extra utility (marginal utility) brought by each successive slice diminishes as yo...
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Answered by Julia R. • Economics tutor
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