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Edmonds
Questions and answers by visitors named
Edmonds
Questions (5)
(a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it
2 answers
709 views
What is the weight of 2.5 litres of petroleum which has a density of 0.64g/mL?
1 answer
375 views
A positive ion moves at a velocity of 2.4x10^5 ms in a circular path of radius 1.8m when a magnetic field of 0.315 T is applied.
1 answer
435 views
An object, 12 cm tall, is placed 8.0 cm in front of a convex mirror with a radius of curvature of 7.0 cm.
Use the mirror formula
2 answers
529 views
Find the focal length of a double concave lens made of glass (n=1.52), having radii of curvature of 6.5 cm and 7.5 cm.
3 answers
1,457 views
