The volume of the room is the product of its dimensions:
Now, from the equation
where d is the density, m is the mass and V is the volume, we deduce
So, multiply the density and the volume to get the mass of air in the room.
(YOU WILL GET BRAINLIEST)Matter may be classified as a pure substance or a mixture. Where on the Venn diagram would you insert t
he term "pure substance"?
A) A
B) B
C) C
D) D
A) A
B) B
C) C
D) D
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
Anything that has space and occupies volume is known as matter.
A pure substance can be molecule of an element or molecule of a compound.
A molecule can have atoms of either same or different element. Whereas a compound has atoms of different elements.
For example, is a molecule with similar atoms, that is, hydrogen element.
is a compound that contains hydrogen and oxygen atom.
Thus, we can conclude that pure substance contains molecule of an element or molecule of a compound.
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Answer:
The wire meet the ground at an angle of 56.4 degrees
Explanation:
It is given that,
To support a tree damaged in a storm, a 12-foot wire is secured from the ground to the tree at a point 10 feet off the ground.
The hypotenuse is, H = 12 foot
The perpendicular distance is, P = 10 feet
The angle between the tree and the ground is 90 degrees
Using Pythagoras theorem as :
So, the wire meet the ground at an angle of 56.4 degrees. Hence, the correct option is (d).
Answer:
The specific heat is 3.47222 J/kg°C.
Explanation:
Given that,
Temperature = 13°C
Temperature = 37°C
Mass = 60 Kg
Energy = 5000 J
We need to calculate the specific heat
Using formula of energy
Put the value into the formula
Hence, The specific heat is 3.47222 J/kg°C.