A solar reflector is made using 31 identical triangular-shaped mirrors, each having sides . What is the total surface area of th
1 answer:
Complete Question
Question 18 (3 points) Solve the problem. (3 points) A solar reflector is made using 31 identical triangular-shaped mirrors, each having sides 2.4m, 2. 3m, 1.5 m. What is the total surface area of the reflector?
A) 33 m2
B) 86 m2
C) 52 m2
D) 34 m2
Answer:
The value is
Explanation:
From the question we are told that
The sides are a = 2.4 m
b = 2.3 m
c = 1.5 m
Generally the semi perimeter is mathematically represented as
=>
=>
Generally the using Heron's formula we have that the surface are a is mathematically represented as
=>
=>
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Answer:
c) 8.3 x 10^24 molecules
Explanation:
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The relationship between mass and volume is:
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M is the total mass of the glass of water
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where
N is the number of molecules in the glass of water
Solving for N, we find:
Answer:
Explanation:
Given that,
The distance between two spheres, r = 25 cm = 0.25 m
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Put all the values,
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