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stellarik [79]
3 years ago
14

Eddie is performing an experiment. He asked the question what type of soil makes plants grow the fastest. He has four plants. He

gives Plant #1 with potting soil,Plant #2 with sand, Plant #3 with dirt from his yard, and Plant #4 with gravel. All of the plants are kept on the same shelf next to the window and receive the same amount of water. After 4 months, Plant #1 is 100 cm tall, Plant #2 & #3 are 115 cm tall, and Plant #4 is 12 cm tall.
What is the Manipulated Variable in this Experiment?

What is the Responding Variable?

Please help me!
Chemistry
1 answer:
Bezzdna [24]3 years ago
4 0
Manipulated variable: the types of soil
Responding variable: how much t the plants grow
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in a torricell barometer a pressure of one atmospheric pressure supports q 760 mm coloumn of mercury.if the original tube contai
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Answer:

The answer to the question is

The height of the mercury fluid column remain the same.

Explanation:

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Therefore, when the diameter is doubled we have

Density of the mercury in the tube with twice the diameter = (Mass of mercury)/(volume of mercury) where the volume of mercury = h×pi×(Diameter×2)^2/4 = h×pi×Diameter^2. Therefore the volume increases by a factor of 4 and therefore the mass increases by a factor of 4 which means that the density remains the same hence

P = p×h1×g = p×h2×g Therefore h1 = h2

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plz mark me as brainliest.

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