Answer:
velocity (v) =distance(s) ÷ time (t)
Explanation:
v=s÷t
s=v×t
s=3×3.4
s= 10.2m
The correct answer is D. Amount of time and area of physical contact between the substances.
Explanation:
Heat transfer refers to the flow of thermal energy or heat between two or more objects. This process involves multiple factors and implies heat from the hottest object goes to the coldest one until there is an equilibrium. To begin, heat transfer depends on the amount of thermal energy in the objects because objects must have a different amount of thermal energy for heat to flow.
Besides this, the amount of energy that flows depends on the time and the contact between the substances of objects. Indeed, objects need to be in contact or close to each other for heat to transfer, and the time needs to be enough for the process to occur. For example, if you place a pot over the fire just for a few seconds it is likely the heat transferred is minimal, which does not occur if you leave the pot more time. At the same time if the pot is in close contact with fire more heat will be transferred.-
<span>Hello!
The pointed component, which is not found in such a large amount is the earthworm.
Others, such as air, for example, are permeating all soils.
Hugs!</span>
Answer:
Explanation:
We are given that
We have to find the scalar product and the angle between these two vectors
Angle between two vectors is given by
Where 
in degrees
Using formula
Where x= Coefficient of unit vector i
y=Coefficient of unit vector j
Using the formula
degrees
Hence, the angle between given two vectors=
