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A rollercoaster carriage wants to go up a slope of length 10m at an angle of 30 degrees above the horizontal, at what speed must the carriage be travelling at the bottom of the slope in order for it to reach the top? (Negligable Drag)

10m/s

PW
Answered by Peter W. Physics tutor
1356 Views

Describe how to find the concentration of an alkali using an acid of a known concentration.

Titrate the acid of known concentration against the alkali of unknown concentration to find the volume of acid needed to neutralise a known volume of the alkali. Remember to use an appropriate indicator a...

JK
Answered by James K. Chemistry tutor
3040 Views

how can i get an a*

you should be able to see a clear development of style in your book, making use of mixed media. You should use examples of artists and record your own creative responses to them, eventually forming an end...

HS
Answered by Hara S. Art tutor
1183 Views

(9-x)/2 = 2x - 8

(9-x)/2 = 2x - 8 Firstly, we want to multiply both sides by two to get rid of the fraction:9-x = 2(2x - 8)Open up the brackets:9 - x = 4x - 16Finally, we want to get the x's on one side and the numbers on...

IG
Answered by India G. Maths tutor
2350 Views

Completing the Square

A curve has an equation y = 2x2 – 5x + 12a.      Write y = 2x2 – 5x + 12 in the form a(x + m)2 ...

AD
Answered by Andre d. Maths tutor
2751 Views

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