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Lera25 [3.4K]
3 years ago
14

Piaget used a pendulum apparatus to assess whether children had reached the _____ stage of cognitive development.

Physics
1 answer:
Savatey [412]3 years ago
6 0

Answer:

formal operational

Explanation:

The Formal operational thinking has tested experiments using the pendulum. The method involved three factors (variables) the length of the string, the weight of the object and the force or impulse that is printed on it. The task was to find out which factor is most important to determine the swing speed of the pendulum. Children who have already reached the formal operational stage solve the task systematically, testing one variable at a time.

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A 1500-W electric heater is plugged into the outlet of a 120-V circuit that has a 20-A circuit breaker. You plug an electric hai
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Answer:

900 W.      

Explanation:

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What properties characteristics we use to tell the difference between of matter
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3 years ago
A small plane flies 40.0 km in a direction 60° north of east and then flies 30.0 km in a direction 15° north of east. Use the an
lana66690 [7]

Answer:

d= 64.7 km

\theta = 40.9^{o}

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Explanation:

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during 2nd flight

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Geographical Direction \theta = tan^{-1}\frac{r_y}{r_x} [tex]\theta = 40.9^{o}

Displacement d= \sqrt{r_x^2 + r_y^2}

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8 0
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