a)
The volume of the sports hall can be calculated using the equation
where
a, b, c are the measures of the sizes of the hall
For the sport hall in this problem, we have
a = 80 m
b = 40 m
c = 15 m
Substituting into the equation, we find
b)
Being a gas, the air fills the whole sport halls, therefore its volume is equal to the volume of the sports hall.
The relationship between the mass, the volume and the density of the air is
where
is the density
m is the mass
V is the volume
Here we have:
Solving for m, we find the mass of air:
B.Aluminum because its the poorest out of the other 3
Answer:
Tension in the wire= 1837.5 N
Explanation:
The answer along with solution can be found in the image attached.
No.
If they add together to get a vector of length zero they should make a triangle of loading.
The sides 1 m, 2 m and 4 m will not make a triangle since the sum of 1 and 2 is less than 4.
In the given figure a+b < c , so they make a triangle.
Here this condition is not satisfied.
the answer Is C. ,, thank you :)