Chapter 2 Higher 4 Describe how electricity can be generated using solar cells and coal. Compare the
advantages and disadvantages of each method.
(6 marks)
In this question you get marks for how well your answer is written.
You will get marks for:
spelling
• grammar
organising your ideas and information clearly
using key scientific words, such as renewable and non-renewable.
No

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Explanation:

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for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.