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3 years ago

Maggie is using her cat in an experiment on animal intelligence. Which of the following statements is true?

Physics

1 answer:

Kamila [148]3 years ago

6 0

1. If Maggie gives her cat an unfair advantage, her experimental results will be biased.

Explanation:

Maggie using her cat in the experiment to test for intelligence gives the cat an unfair advantage, her experimental results will be biased.

Due to her emotional attachment with the cat, the experimental results will be skewed to portraying her cat as intelligence.
This is not a good experiment to carry out.
Such an experiment should be carried out with an unknown cat.

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Experiment brainly.com/question/1621519

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A meter stick is balanced at the 50 cm mark. You tie a 20 N weight at the 20 cm mark. Where should a 30 N weight be placed so th

vivado [14]

Answer:

20 cm to the right of the center or 20+50 = 70 cm from the left side.

Explanation:

The length of meter stick is 1 m = 100 cm

Balance point on 50 cm

From the center the 20 N weight is 50-20 = 30 cm

Torque is obtained when force is multiplied with the distance

As the force is conserved we have

$\dfrac{20}{30}\times 30=20\ cm$

The distance will be 20 cm to the right of the center or 20+50 = 70 cm from the left side.

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3 years ago

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Answer:

False

Explanation:

Potential energy is stored energy, so it is not in motion. Kinetic energy is the energy in motion.

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4 years ago

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murzikaleks [220]

Answer:

It was proposed by Isaac Newton

Explanation:

The law of universal attraction of expression

F = $G \ \frac{m_1m_2}{ r^2}$ G m1m2 / r ^ 2

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Answer:

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Explanation:

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