Answer:
<em>SI Units</em>
Meter
Kilogram
Kelvin
<em>US Customary Units and English Units</em>
Gallon
Mile
Pound
Degrees Fahrenheit
Explanation:
The SI units or International System of Units are the widely used metrics of measuring a physical quantity. It has specific abbreviations.
The US customary units is a measurement system where it is widely used in the united states. This system of unit also has abbreviations.
There are also conversion scales that are used to convert a unit from one metric system to the other.
For example, the conversion of mile to SI unit is given by the formula
1 mile = 1609.4 meters
Similarly,
1 pound = 0.453592 Kg
property of gas
gas molecules are very loosely bonded with each other so the force between the molecules is very weak
Due to this weak force the molecules of gas can attain any shape and any volume.
So gas moles have no finite shape and no finite volume
Property of Solids
Solids are tightly packed and having very strong bond between the molecules
If all molecules are tightly bonded then they have always a finite shape and finite volume so in this case we can not change the volume or shape of the solids as it is fixed.
Property of Liquids
Liquid molecules are moderately bonded together and since the force is more than the force between the gas molecules so liquids have finite volume but indefinite shape
liquid attains the shape of the container but its volume is fixed
So in above all examples Liquid is correct answer
Answer:
(a) Time t = 16.46 sec
(b) Time t =13.466 sec
(c) Deceleration = 
Explanation:
(a) As the train starts from rest its initial velocity u = 0 m/sec
Acceleration 
Final speed v = 80 km/hr
From first equation of motion v =u+at
So 
(b) Now initial speed u = 22.22 m/sec
As finally train comes to rest so final speed v=0 m/sec
Deceleration 
So 
(c) We have given that initial velocity = 80 km/hr = 22.22 m/sec
Final velocity v = 0 m/sec
Time t = 8.30 sec
So acceleration is given by
As acceleration is negative so it is a deceleration
