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zheka24 [161]
3 years ago
8

Use the drop-down menus to show the development of the atomic theory from the oldest theory (1) to the most recent theory (5).

Physics
2 answers:
lesya692 [45]3 years ago
6 0

Answer:

4

1

3

5

2

Explanation:

Just took the test

miss Akunina [59]3 years ago
4 0

Answer:

4

1

3

5

2

Explanation:

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A cart of mass 20 kg, initially at rest, is pushed with a net force of 40 N on a flat surface. If the cart is pushed 5 m, what i
bixtya [17]
Using the theorem of kinetic energy
1/2mVf² - 1/2mVi²= WF + Wp,     Wp=0
WF = F. AB, AB=5m and F= 40N, m=20kg
so the final kinetic  is KEf= 1/2mVf² = WF =<span>F. AB= 40*5=200J
</span>
the final velocity is 1/2mVf² <span>=200, implies   Vf= sqrt(20)=2sqrt(5)m/s</span>

3 0
3 years ago
How much is done when moving a box 25 m with a net force of 30 N?
mariarad [96]

Answer:

W = 750 [J]

Explanation:

The question should be related to work, work in physics is defined as the product of force by distance. In this way, we can use the following equation.

W=F*d

where:

F = force = 30 [N]

d = distance = 25 [m]

W = work [J]

Now replacing:

W=30*25\\W=750 [J]

4 0
3 years ago
Which of the following factors influences the speed of a wave? I. the type of wave II. the amplitude of the wave III. the medium
Nata [24]

I. the type of wave ... electromagnetic or mechanical

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III. the medium in which the wave travels ... completely determines the wave speed

3 0
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e) 1.04

Explanation:

4 0
3 years ago
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A hockey puck has a momentum of 3.8 kg•m/s [E]. If its
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1.6 \times 10 { }^{ - 1} kg \\

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