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Svetach [21]
3 years ago
6

Adding heat to a liquid causes which of the following physical changes?

Physics
2 answers:
scoundrel [369]3 years ago
6 0

adding heat to liquid causes

c) decreases density


Nadya [2.5K]3 years ago
4 0
Decreases density because gases have less density than liquids
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What is the difference between scientific law and scientific theory
Vedmedyk [2.9K]

Answer:

In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.

Explanation:

8 0
2 years ago
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A tangent line drawn on a velocity-time graph has a rise of 19 m/s and a run of 4.0 m/s. How large is the acceleration? What typ
klemol [59]

Answer:

Acceleration = 4.8 m/s²

Explanation:

Given:

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Change in time = 4 s

Find:

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Computation:

Acceleration = Change in velocity / Change in time

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Positive acceleration

8 0
3 years ago
A 19kg block is being pulled with a constant horizontal force of 95 Newton’s while also experiencing a constant friction force o
yuradex [85]

Answer:

A

⋅(19kg)=19Akg

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Explanation:

5 0
3 years ago
Why does a plastic comb attract small bits of paper after rubbing with wool?
navik [9.2K]
Static electricity. Like the balloon against hair
5 0
3 years ago
An American Red Cross plane needs to drop emergency supplies to victims of a hurricane in a remote part of the world. The plane
Andreas93 [3]
Refer to the diagram shown below.

Assume that air resistance is ignored.

Note:
The distance, h, of a falling object with initial vertical velocity of zero at time t is
h = (1/2)gt²
where
g = 9.8 m/s²

The initial vertical velocity of the supplies is 0 m/s.
It the time taken for the supplies to reach the ground is t, then
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Hence obtain
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t = 3.1944 s

The horizontal distance traveled at a speed of 100 m/s is
d = (100 m/s)*(3.1944 s) = 319.44 m

Answer: 319.4 m (nearest tenth)

3 0
3 years ago
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