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cluponka [151]
3 years ago
14

A mixture composed of a solute dissolved in a solvent that may or may not contain water

Physics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:

Solution

Explanation:

A solution is a mixture composed of solute which are dissolved in a solvent which may or may not contain water.

They are homogeneous mixtures in which the solute particles are evenly distributed uniformly in the solvent.

  • The solute is usually the substance dissolved.
  • It is usually present in a smaller amount compared to the solvent.
  • The dispersing medium is the solvent.
  • It allows for the solute to go into solution.
  • A solution in which the solvent is water is called an aqueous solution.
  • Their particles do not settle on standing.
  • They are usually clear and may have color.
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I have these questions I need to find the acceleration, Please explain how to do them, Don't have to explain all xD
34kurt
1. a=(v-v0)/t
a=14 m/s / 2s
a=7 m/s^2
2. <span>a=(v-v0)/t
</span>a=(30 m/s - 0 m/s) / 12 s
a=2.5 m/s^2
3. <span>a=(v-v0)/t
a=(37 m/s - 22 m/s) / 2 s
a= 7.5 m/s^2
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7 0
4 years ago
A car traveling west in a straight line on a highway decreases its speed from 30.0 meters per second to 23.0 meters per second i
pychu [463]
Acceleration, a =  (v - u) / t

Initial Velocity, u = 30 m/s
Final Velocity, v  =  23 m/s
time                 t  =  2.00 seconds

a = (23 - 30) / 2
a = -7 / 2 = -3.5 m/s2

So the acceleration  is negative, which means it is a deceleration of 3.5 m/s2.
8 0
3 years ago
How many electrons must be added to an object to give it an overall net charge of -3.0 x 10^-7 C? The charge of an electron is -
katovenus [111]

The number of electrons is 1.9\cdot 10^{12}

Explanation:

The total net charge on a negatively-charged object is given by

Q=Ne

where:

N is the number of excess electrons

e is the charge of a single electron

In this problem, we have

Q=-3.0\cdot 10^{-7}C is the overall charge of the object

e=-1.602\cdot 10^{-19}C is the charge of one electron

Solving the equation for N, we find:

N=\frac{Q}{e}=\frac{-3.0\cdot 10^{-7}}{-1.602\cdot 10^{-19}}=1.9\cdot 10^{12}

Learn more about electrons and other particles:

brainly.com/question/2757829

#LearnwithBrainly

6 0
3 years ago
The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67
Lady bird [3.3K]

Explanation:

The nucleus of an atom can be modeled as several protons and neutrons closely packed together.

Mass of the particle, m=1.67\times 10^{-27}\ kg

Radius of the particle, R=10^{-15}\ m

(a) The density of the nucleus of an atom is given by mass per unit area of the particle. Mathematically, it is given by :

d=\dfrac{m}{V}, V is the volume of the particle

d=\dfrac{m}{(4/3)\pi r^3}

d=\dfrac{1.67\times 10^{-27}}{(4/3)\pi (10^{-15})^3}

d=3.98\times 10^{17}\ kg/m^3

So, the density of the nucleus of an atom is 3.98\times 10^{17}\ kg/m^3.

(b) Density of iron, d'=7874\ kg/m^3

Taking ratio of the density of nucleus of an atom and the density of iron as :

\dfrac{d}{d'}=\dfrac{3.98\times 10^{17}}{7874}

\dfrac{d}{d'}=5.05\times 10^{13}

d=5.05\times 10^{13}\ d'

So, the density of the nucleus of an atom is 5.05\times 10^{13} times greater than the density of iron. Hence, this is the required solution.

7 0
4 years ago
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