Answer: physical or mechanical weathering
Explanation:
Mechanical weathering which is also referred to as the physical weathering occurs when a rock is broken down into smaller pieces. In this case, there will be a physical change of the rock but its composition will not change.
Some examples include ice freezing and expansion of the cracks in the rock, Smstrong winds that carrycpieces of sand which then sandblast surfaces, moving water which causes abrasion etc.
Explanation: Formulas you need to use:
K=0.5mass(Velocity^2)
km/h / 3.6 ===>M/S
Step 1:
convert km/h to m/s
Put the values in the formula :
Density =Mass/volume
When mass is constant, density is inversely proportional to volume or vice versa
When volume decreases, density increases
Hope it helps
Answer:
good nutrition
Explanation:
I think that one's pretty self explanatory
Answer:

Explanation:
Given that
Angle ,θ = 30°
From Malus law,Intensity given as

Io=Intensity of unpolarized light
I=Intensity of emerging light
Now by putting the value of angle


We know that



Therefore ratio will be 