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Sauron [17]
3 years ago
15

Consider this statement: Air is matter. Which facts best support the statement?

Physics
2 answers:
mihalych1998 [28]3 years ago
8 0
The answers is A and C hope this helps :)
Tju [1.3M]3 years ago
6 0
<h3><u><em>Answer;</em></u></h3>

<em>A. Balloons can be filled with air. </em>

<em>C. Air has mass</em>

<h3><u>Explanation;</u></h3>
  • <em><u>A matter is anything that can occupy space and has a particular weight.</u></em>
  • <u><em>Matter</em></u> is classified into three states which are; solids, liquids, and gases. the three state of matters differ in terms of packaging of molecules and their shape, that is whether definite or indefinite, or their volume.
  • <em><u>Air is an example of matter which is in gaseous state. It has both mass and occupies weight.</u></em> The fact that air has mass makes it matter. Also the fact that balloons can be filled with air means that air occupies space.
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A race car starts from rest and accelerates uniformly to 69 mph in 4.5 s.
Marizza181 [45]
For this question we should apply
a = v^2 - u^2 by t
a = 69 - 0 by 4.5
a = 69 by 4.5
a = 15.33
a = 6.85 m/s^2

If the answer in option is near to answer then , you can mark it as correct.
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5 0
3 years ago
A ball rolls down a hill and hits a box. The momentum of the ball decreases. Which happens to the momentum? Select one of the op
Irina-Kira [14]
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7 0
3 years ago
An object that weighs 2.450 N is attached to an ideal massless spring and undergoes simple harmonic oscillations with a period o
Viktor [21]

Answer:

Spring constant, k = 24.1 N/m

Explanation:

Given that,

Weight of the object, W = 2.45 N

Time period of oscillation of simple harmonic motion, T = 0.64 s

To find,

Spring constant of the spring.

Solution,

In case of simple harmonic motion, the time period of oscillation is given by :

T=2\pi\sqrt{\dfrac{m}{k}}

m is the mass of object

m=\dfrac{W}{g}

m=\dfrac{2.45}{9.8}

m = 0.25 kg

k=\dfrac{4\pi^2m}{T^2}

k=\dfrac{4\pi^2\times 0.25}{(0.64)^2}

k = 24.09 N/m

or

k = 24.11 N/m

So, the spring constant of the spring is 24.1 N/m.

6 0
2 years ago
What is the name of the process in which oceanic crust moves apart at mid-ocean ridges due to convention currents in the mantle?
Katena32 [7]
The answer is D seafloor spreading
7 0
2 years ago
You run 100 meters in 50 seconds. Calculate your speed, label with m/s
NemiM [27]

Answer:

2 m/s

Explanation:

speed = distance/time

s = 100/50 = 2

4 0
3 years ago
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