PhD Engineering in Lancaster.
ASKED BY MELINAMATHS 💯
A right angled triangle with one side 5.7 cm and the other 6.3 cm what is x (the short side, base)?
For this question you need to use Pythagoras' Theorem: the square of the hypotenuse (the longest side, which is opposite the right angle) is equal t...
ASKED BY HAMZASCIENCE 🔬
Chemistry: My question is how does a greater concentration speed up particles and cause collisions? 2nd question: How does a catalyst impact any results taken?
Simply increasing concentration does not increase the speed of the particles, it increases the rate of reaction. The greater concentration of partic...
ASKED BY OMARMATHS 💯
Helen draws a random circle. she then measure it diameter and circumference. should get a circumference, C, of 405mm correct to 3 significant figures she get a diameter, D, of 130mm correct 2 significant figures. Helen want to find the value of Pi using a formula Pi =D/C calculate the lower bound and upper bound for Helen's value of pi give your answer correct to 3 decimal place?
First, you want to find the lower and upper bounds of the circumference C and diameter D. C = 405mm to 3sf so the bounds are: 404.5 to 405.5 We find...
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