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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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It takes 444 newton to acceleration an object 7.0 m/s^2. What force was applied to the object?
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Answer:

F = 451N

Explanation:

F = 444N + 7m/s^2

=451N

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3 years ago
How does Newton's 2nd law relate to Moment of Inertia?
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Suppose a Southwest Airlines passenger plane took three hours to fly 1800 miles in the direction of the Jetstream. The return tr
Alex73 [517]

Answer:

plane speed: 525mph, jetstream speed=75mph, in explanation it is solved with a linear equations system

Explanation:

First lets name each speed

vs:=speed of the jetstream

vp:=speed of the plane

Now when in the jetstream direction the speeds are added and on the opposite direction are subtracted, then we get these equations, that are linear.

1800 mi=(vp+vs)*3h

1800 mi=(vp-vs)*4h

which is a linear equation system equivalent to:

600 mph=vp+vs (1)

450 mph=vp-vs  (2)

Now from (2) vp= 450mph+vs (3), replacing this in (1) we get:

600mph=(450mph+vs)+vs=450mph+2*vs, then 2*vs=150mph or vs=*75mph, this is the jetstream speed, replacing this in (3) we get the plane speed too vp=450 mph +75mph = 525 mph

7 0
4 years ago
When Pluto was classified as a planet it was known as a oddball planet why? Why is it less if an oddball now?
hichkok12 [17]

Answer:

a strange world that has baffled scientists ever since it was discovered in 1930. It is not the large gas giant that one might expect to find in the outer reaches of the solar system.

Explanation:

Explanation

7 0
3 years ago
Explain the causes of yaa asantewaa war of 1900​
Anna11 [10]

Answer: the conflict began when a british representative - Sr. Frederick Mitchell Hodgson sat on the golden stool.

Explanation:

since the stool wasn't a throne, when Yaa Asantewaa found out, he led a rebellion which killed 1000 British and allied African soldiers and 2,000 Ashanti.      

good luck with your assignment :)

8 0
3 years ago
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