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A cannonball is fired at an angle of 30 degrees and a velocity of 16 m/s. How long does it take (to 2 significant figures) for the cannonball to reach the ground?

First, we make the standard assumption that there is no air resistance, meaning that gravity is the only force acting on our cannonball. We then use the SUVAT equations, so: S = 0m (because it will return to...
NB
Answered by Nada B. • Maths tutor
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Was ist deiner meinung von Fernsehen für Kinder?

Meine meinung nach fernsehen und kinder, ist dass kinder wenige TV sehen mussen, stattdessen mussen sie mehr sport machen, um fit zu blieben und eine gesunde Lebensweise zu bekommen. TV kannst schlechte ausw...
Answered by • German tutor
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Formation of an enzyme-substrate complex increases the rate of reaction, explain how.

The formation of an enzyme substrate complex reduces the activation energy required for the reaction to take place by bending bonds. Without an enzyme, very few reactions would have the energy to take place.
Answered by • Biology tutor
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The curve C has equation ye^(-2x) = 2x + y^2. Find dy/dx in terms of x and y.

The curve's equation is presented as an implicit function. Therefore we must use implicit differentiation to solve this problem. To do this, we differentiate both sides of the equation with respect to x, app...
GW
Answered by Georgia W. • Maths tutor
9967 Views

How do I improve my listening skills for the aural exam?

Listening comprehension in the German language is particularly difficult because the sentence syntax is completely different to what we would expect in English i.e. the verb goes to the end, commas indicate ...
LH
Answered by Lucy H. • German tutor
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