The correct option is A.
J.J Thompson proposed the plum model of atomic structure. The model states that the atom is a sphere of positively charged matter in which electrons are embedded.
Rutherford designed an experiment to verify the truth of this model. He set up a beam of alpha particles which are to be passed a thin gold foil. If the JJ model of atomic structure is correct, all of the alpha particles suppose to pass through the foil, but some of the alpha particles bounced back while those that passed through the foil emerged at different angles.
True it help support reglions
C. National Park Planning
Biodiversity - <span>the variety of life in the world or in a particular habitat or ecosystem.
Clear cutting and oil drilling both decrease the variety of life, destroying habitat around them.
Farming decreases biodiversity because it decrease the variety of flora in that area, depending on what crop is planted.</span>
Answer:
T = 10 seconds
Explanation:
Given that,
A remote car makes 2 revolutions in 20 seconds.
We need to find the period of the object.
It means, it will make
.
lt T be the period of the object. So,

It will take 10 seconds for one revolution.
Answer:
Mechanical advantage is the measure of the force amplification achieved by using a tool , mechanical device or machine . ... So MA = 2 means that for example if you apply 100 N then your machine will multiply that force and generate 200 N..
Explanation:
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