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Natalka [10]
3 years ago
7

Explain how energy from the Sun created music.

Physics
1 answer:
elixir [45]3 years ago
4 0

-- Energy from the sun was absorbed by grass, grain, and hops, making it possible for them to grow.

-- The grass was eaten by livestock, and turned into stored beef energy.

-- The grain was harvested, pounded into flour, baked, and turned into stored bread energy.

-- The hops were harvested, soaked, and turned into stored beer energy.

-- Johannes Brahms ate beef, which his body turned into brain and muscle energy.  Ludwig van Beethoven drank beer, which his body turned into energy and inspiration.  John Phillip Sousa ate bread, which his body turned into leg energy to march with.

-- All of these individuals, and a lot of others, composed music which nobody had ever heard before, using the solar energy they absorbed from the stuff that they ate and drank.

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The power of a purely resistive lead is always positive although the current and voltage are sometimes negative. explain​
pickupchik [31]

Answer:

Current is in phase with voltage in a resistive circuit. Note that the wave form for power is always positive, never negative for this resistive circuit. This means that power is always being dissipated by the resistive load, and never returned to the source as it is with reactive loads.Explanation:

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Define in own words.
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4 years ago
The construction of a flat rectangular roof (6.17 m × 5.92 m) allows it to withstand a maximum net outward force of 2.00 × 104 N
Blababa [14]

Answer:

v_2=29.13\ m/s

Explanation:

It is given that,

Dimension of the rectangular roof, (6.17 m × 5.92 m)

The maximum net outward force, F=2\times 10^4\ N

The density of air, \rho=1.29\ kg/m^3

The Bernoulli equation is used to find wind speed of this roof blow outward. It is given by :

P_1+\dfrac{1}{2}\rho v_1^2=P_2+\dfrac{1}{2}\rho v_2^2

Here, v_1=0 (since air inside the roof is not moving)

v_2=\sqrt{\dfrac{2(P_1-P_2)}{\rho}}

Since, F=(P_1-P_2)A

v_2=\sqrt{\dfrac{2F}{\rho A}}

v_2=\sqrt{\dfrac{2\times 2\times 10^4}{1.29\times 6.17\times 5.92 }}

v_2=29.13\ m/s

So, the wind speed of  this roof blow outward is 29.13 m/s. Hence, this is the required solution.

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4 years ago
A tank is 2/9 full when it is filled with 16 litre of water.How much water will there be when the tank is full
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=9/2×16 =72 liters in the tank
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Jaden’s mass is 50 kilograms. His weight on Earth is newtons, and his weight on Mars is newtons.
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