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If a car is traveling at a speed of 10m/s. The driving force of 500N is required to keep the speed constant . What is the power supplied by the engine?

In the question we are given:Speed=10m/sForce=500NPower is work done per second and also the force times velocity.(could discuss how this works in units: W=J/s = Nm/s therefore Joules = Newton-meters )So pow...
TD
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Using a diagram, explain why firms in monopolistic competition are neither allocatively nor productively efficient?

Assumptions: large no. of firms in the industry, relatively small firms, low barriers to entry, perfect knowledge, product differentiation Allocative efficiency: MC=AR and the market allocated resources so t...
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Answered by Sukirti L. • Economics tutor
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Show that 1+cot^2(x)=cosec^2(x)

Need to remember that:sin 2 (x)+cos 2 (x)=1 (eq.1)Divide the whole eq.1 by sin 2 (x)to get:sin 2 (x)/sin 2 x+cos 2 (x)/sin 2 (x)=1 /sin 2 x Which is the same as:1+cot 2 x=cosec 2 x
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Answered by Tutor114151 D. • Maths tutor
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What do Oxbridge tutors look for in a personal statement?

There are two important things to bear in mind when starting the personal statement, as it can seem a daunting task: firstly, to remember that this will be read by all universities applied to, not just Oxbri...
GC
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The mean of 4 numbers is 8 when a 5th number is added the mean becomes 10, what is the 5th number?

Ok, so firstly let's think about what the mean means? Add all the numbers together and then divide by the total number of values we have.So, that means with the 4 numbers we currently have the total divided ...
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Answered by Carmen O. • Maths tutor
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