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Marina CMI [18]
3 years ago
7

Before experimenting with the pendulum task apparatus, a teenager is asked which variable determines the rate of swinging, and s

he says, "weight." The teen then systematically tests this hypothesis by testing one variable at a time while holding the other variables constant in order to get the right answer. This teen is most likely in the __________ stage.
Physics
1 answer:
solmaris [256]3 years ago
6 0

Answer:

formal operations

Explanation:

In the period of formal operations the young man is already able to reason about hypotheses insofar as he is able to form abstract conceptual schemes and through them to perform mental operations within the principles of formal logic. With this, the adolescent acquires "the capacity to criticize social systems and propose new codes of conduct: discusses moral values of their parents and builds their own (thus acquiring autonomy)".

An example of the period of formal operations can be seen in the question above, where a teenager was able to think for himself how to test the hypotheses of an experiment to arrive at a concrete conclusion about it.

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gayaneshka [121]

Answer:

61 ms

Explanation:

Given that

Length of the nerve call connecting the spinal cord to your feet, s is 1.1 m

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Time taken by the nerve to travel the distance, t = ?

In solving this, we'd apply the very most basic formula in physics. Formula of speed, with respect to time and distance.

Speed, v = distance, s / time, t

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time, t = 0.061 s, converting to milliseconds, we have, time, t = 61 ms

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When water freezes, its volume increases by 9.05% (that is, equation). What force per unit area is water capable of exerting on
PIT_PIT [208]

Answer:

1.991 × 10^(8) N/m²

Explanation:

We are told that its volume increases by 9.05%.

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To find the force per unit area which is also pressure, we will use bulk modulus formula;

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Making Δp the subject gives;

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3 0
3 years ago
an object is moving with initial velocity of 5 m/s. After 10 seconds final velocity is 10 m/s. Calculate its acceleration.​
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Answer:

0.5m/s2

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