Describe how sound waves move through different types of matter. Compare the speed at which sound moves through solids, liquids,
1 answer:
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Answer: 5.34 MJ
Explanation: The window is a rectangle with area:
A = 1.1(1.5)
A = 1.65 m²
We know that only 0.9 kW/m² reaches Earth so:
P =
P = 1.485 x 10³ W
Watts is an unit of Power and it can also be written as J/s.
An hour has 3600s or 3.6 x 10³s, so:
E = 1.485 x 10³ (3.6 x 10³s)
E = 5.346 x 10⁶ J
Mega is equal to 10⁶, then:
E = 5.35 MJ
A 1.1 m by 1.5 m window collects, during 1 hour of daylight, 5.35 MJ
Answer:
The radius of the disc is 2.098 m.
(e) is correct option.
Explanation:
Given that,
Moment of inertia I = 12100 kg-m²
Mass of disc m = 5500 kg
Moment of inertia :
The moment of inertia is equal to the product of the mass and square of the radius.
The moment of inertia of the disc is given by
Where, m = mass of disc
r = radius of the disc
Put the value into the formula
Hence, The radius of the disc is 2.098 m.
The rate of change of vertical pressure is directly proportional to density and also directly proportional to temperature.
Generally, the relationship between temperature, density and rate of vertical pressure is given as;
where;
- <em>ρ is density</em>
- <em>T is temperature</em>
- <em>dP is rate of change of vertical pressure</em>
Thus, from the formula above, we can conclude the following relationship between temperature, density and the rate of vertical pressure change in spatial pattern of heights.
The rate of change of vertical pressure is directly proportional to density and also directly proportional to temperature.
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