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lyudmila [28]
3 years ago
5

Classify the items based on whether they are or are not matter. toothpaste, happiness, gasoline, sound, bacteria, cell

Physics
2 answers:
Ahat [919]3 years ago
8 0
They are all matter, in fact, anything that takes up space is matter because atoms are building blocks of matter, and everything is made up of atoms.
kirill115 [55]3 years ago
8 0

Answer:

Matter : toothpaste, gasoline, bacteria, cell

Non matter: happiness, sound.

Explanation:

Matter is a substance which occupies space.

For example, sugar, chair, water, ice, etc.

Non matter is the substance which does not occupy space.

For example, anger, cold, hot, etc.

In the given data,

Matter : toothpaste, gasoline, bacteria, cell

Non matter: happiness, sound.

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What is a wave? In other words, what is the physical science term for a wave?
Oduvanchick [21]
A wave is a physical phenomenon characterized by its frequency, wavelength, and amplitude. in general waves transfers energy from one to another, in which case they have velocity
6 0
3 years ago
2. A mixing bowl has a mass of 0.5kg. A baker adds 0.0002m of water to the mixing bowl until
myrzilka [38]

Answer:

mass of water is 0.2kg

Explanation:

mass of water is tota mass of bowl minus mass of bowl

6 0
2 years ago
How to solve 2 ⃗− ⃗ ?
kobusy [5.1K]

lol I'm not sure if you were meant to add an image or if this is a joke but 1+1 is 2 ig

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A group of air particles in a balloon are spread far apart and moving rapidly around inside the balloon. The balloon is placed i
Slav-nsk [51]

Answer:

1) The balloon will shrink

2) The balloon will grow bigger and regain its shape

Explanation:

By the kinetic theory of gases, we have;

v_{rms} = \sqrt{\dfrac{3 \cdot R \cdot T}{MW} }

P = \dfrac{n \cdot MW \cdot vrms^2}{3 \cdot V}

Where;

v_{rms} = RMS Speed

R = The universal gas constant

T = The temperature

MW = The Molecular weight

n = The number of moles

V = The volume

P = The pressure

1) When the balloon is placed in the refrigerator for  minutes, the temperature inside the balloon will drop and RMS speed will reduce, however due to the elastic wall of the balloon, the pressure will remain the same therefore the volume  will reduce and the balloon will shrink

2) When the balloon is placed on the kitchen counter, the temperature inside the balloon will rise leading to the increase in the RMS speed which will raise the pressure effect on the wall  of the balloon as the balloon is made of elastic material, as the pressure rises, the wall expands to keep the pressure constant and the volume occupied by the air particles will increase, the balloon will grow bigger and regain its shape.

6 0
3 years ago
If an automobile's velocity changes from 25 m/s to 15m/s in 2s, then what is its acceleration?
tekilochka [14]
Hey!

u=25m/s
v=15m/s
t=2s
a=?

v-u=at
15-25=a×2
-10=2a
-10/2=a
a=-5m/s^2

Hope it helps...!!!
8 0
4 years ago
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