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Striker
Questions (6)
Give an example where Work done by friction is positive and one where it is negative.
0 answers
312 views
A 13.8 g sample of a compound containing only N and O produced 4.2 g of nitrogen on decomposition. What is its empirical
2 answers
1,180 views
A 20 kg girl slides down a playground slide that's 3.2 m high. When she reaches the bottom of the slide her speed is 1.3 m/s.
1 answer
2,827 views
When something adds up is it correct to say, The calculation checked out or checked up.
1 answer
382 views
Find the density of a block that is less dense than water and held still 4.39 m underwater with a force of 0.855 N. When the
1 answer
385 views
An object weighs 15N in air and 13N when submerged in water. What is the density of the object.
3 answers
6,634 views
