Answer: The property that will best provide evidence that the samples are solid includes:
--> if the substance has a definite shape,
-->if the substance has a definite volume
--> if it's tightly packed.
Explanation:
According to the kinetic theory of matter, every substance consist of very large number of very small particles called molecules. These molecules, which are made up of atoms that are the smallest particles of a substance that can exist in a free state.
Matter can exist in the following states:
--> Solid state
--> liquid state or
--> Gaseous state.
The general property of a substance that is in gaseous state includes:
--> Definite shape: A substance can be grouped as a solid if it's shape is fixed that is, it doesn't depend on the shape of other materials.
--> Definite volume: A substance can be grouped as a solid if it occupies its own shape. This is due to the force of cohesion among its molecules.
--> Tightly packed: A substance can be grouped as solid if the molecular movements of the particles are negligible.
From the samples under observation by Juan and kym, if the sample that possesses the above described qualities, it is a solid rather than liquid or gas.
Answer:
I guess that we want to find how much money you get each week.
We know that the job pays $8.60 per hour.
We know that you work 20 hours per week.
Then the gross pay (the total money that you earn) in a week is 20 times $8.60, or:
20*$8.60 = $172.
Now we know that your employer witholds:
10% + 7.65% + 5% = 22.65%
Then your employer withholds 22.65% of your gross pay.
if the 100% of your gross pay is $172
Then the 22.65% will be:
(22.65%/100%)*$172 = 0.2265*$172 = $38.96
This means that your employer withholds $38.96 of your weekly gross pay.
Then each week you get:
$172 - $38.96 = $133.04
![\\ \bull\tt\longrightarrow P=\dfrac{V^2}{R}](https://tex.z-dn.net/?f=%5C%5C%20%5Cbull%5Ctt%5Clongrightarrow%20P%3D%5Cdfrac%7BV%5E2%7D%7BR%7D)
- P is power
- R is resistance
![\\ \bull\tt\longrightarrow R=\dfrac{V^2}{P}](https://tex.z-dn.net/?f=%5C%5C%20%5Cbull%5Ctt%5Clongrightarrow%20R%3D%5Cdfrac%7BV%5E2%7D%7BP%7D)
Hence
![\\ \bull\tt\longrightarrow R\propto V](https://tex.z-dn.net/?f=%5C%5C%20%5Cbull%5Ctt%5Clongrightarrow%20R%5Cpropto%20V)
![\\ \bull\tt\longrightarrow R\propto \dfrac{1}{P}](https://tex.z-dn.net/?f=%5C%5C%20%5Cbull%5Ctt%5Clongrightarrow%20R%5Cpropto%20%5Cdfrac%7B1%7D%7BP%7D)
- Therefore if power is low then resistance will be high.
The first bulb has less power hence it has greater filament resistance.
The magnitude of e.m.f induced in the loop when t = 2 s is 31 Volts.
<h3>emf induced in the loop</h3>
The magnitude of e.m.f induced in the loop is calculated as follows;
emf = dФ/dt
Ф = 6t² + 7t
dФ/dt = 12t + 7
at t = 2 seconds
emf = dФ/dt = 12(2) + 7 = 31 V
Thus, the magnitude of e.m.f induced in the loop when t = 2 s is 31 Volts.
Learn more about emf here: brainly.com/question/24158806
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Answer:
F = 11 N
Explanation:
Given,
Mass of a block, m = 5 kg
Acceleration of the block, a = 2.2 m/s²
We need to find the force on the person's hand. Let it is F. We know that force is given by the product of mass and acceleration as follows :
F = ma
F = 5 kg × 2.2 m/s²
F = 11 N
So, the force on a person's hand is 11 N.