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Mariulka [41]
3 years ago
5

When considering that in the past human societies developed in greater isolation from one another than today, each of the follow

ing statements is true EXCEPT:
Physics
1 answer:
galina1969 [7]3 years ago
3 0

Answer:One can easily assume a direct cause and effect relationship between a physical environment and an aspect of culture

Explanation: During the prehistoric and the earlier centuries human societies developed in isolation, there's no interconnection or much of communication between different groups and societies.

Knowledge sharing is not prominent, but in recent times people are more connected to each other,communities and countries interaction takes place through different forums, during the earlier centuries there are no mobile communication equipments,no Television set or the level of sophistication as it is today.

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What causes the weight of an object to change depending on if it is on Earth or the Moon?
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The acceleration due to gravity



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An object was thrown at a certain angle above the ground.It reaches a maximum height of 42.50 meters and hits back the ground 76
aksik [14]

Answer:

Explanation:  Please see my attached calculations.

7 0
3 years ago
Triton is a moon of Neptune. It has a
Mnenie [13.5K]

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<em>Well, Your answer will be is </em><em>840.96 mi. </em>

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6 0
3 years ago
The train took 2 h 30 min to travel 3/5 of a journey at an
tresset_1 [31]

Answer:

100 km/h

Explanation:

96km•2.5=240km

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6 0
3 years ago
Q.By the method of dimensional analysis derive the
Artyom0805 [142]

Answer

a) Using dimensional analysis we cannot derive the relation, But we can check the  correctness of the formula.

  s = u t +\dfrac{1}{2}at^2

now,  L H S

  s = distance

  dimension of distance = [M⁰L¹T⁰]

now, equation on the right hand side

 R H S

 u = speed

 u = m/s

 Dimension of speed = [M⁰L¹T⁻¹]

dimension of time

  t = sec

 Dimension of time = [M⁰L⁰T¹]

 Dimension of 'ut' = [M⁰L¹T⁻¹][M⁰L⁰T¹]

                              = [M⁰L¹T⁰]

now, acceleration= a

  a = m /s²

dimension of acceleration = [M⁰L¹T⁻²]

dimension of (at²) = [M⁰L¹T⁻²][M⁰L⁰T¹][M⁰L⁰T¹]

                              = [M⁰L¹T⁰]

hence, the dimension are balanced.

so, L H S = R H S

b) Moment of inertia of hollow sphere = \dfrac{2}{3}Mr^2

  Moment of inertia of solid sphere = \dfrac{2}{5}Mr^2

   we know,

    \tau = I \alpha

    \alpha=\dfrac{\tau}{I}

Torque is the force that causes rotation

If the same amount of torque is applied to both spheres the sphere with bigger moment of inertia would have smaller angular velocity.

Thus the solid sphere would accelerate more.

4 0
3 years ago
Read 2 more answers
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