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andrew-mc [135]
3 years ago
8

Suchita is going to make an energy transfer diagram to represent the energy transformations associated with the flame of a gas s

tove. The diagram will show that the chemical energy of the fuel transforms into 50 J of chemical energy, 400 J of heat, and 200 J of light.
Which statement describes Suchita’s final diagram?


The initial chemical energy is 50 J.

The arrow for heat is the widest output arrow.

The arrow for chemical energy is the shortest output arrow.

There is one arrow for input and one for output.
Physics
2 answers:
ira [324]3 years ago
7 0
The answer the the question is, B.<span />
katrin [286]3 years ago
7 0

Answer:

The arrow for heat is the widest output arrow.

The arrow for chemical energy is the shortest output arrow.

Explanation:

here by the law of energy conservation we can say that

Total energy that is used or consumed must be equal to the total energy that is transferred in different forms

So here we will say that

Q_{in} = Q_{out}

here output energies are given as

1. chemical energy = 50 J

2. Heat = 400 J

3. Light = 200 J

so here in output energy form we will get maximum energy in form of heat so the arrow related to this must be widest in size

While the chemical energy is minimum output energy so here the least size arrow will be of chemical energy

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Answer:

1270.64\ \text{J}

Explanation:

m = Mass of object = \dfrac{mg}{g}

mg = Weight of object = 20 N

g = Acceleration due to gravity = 9.81\ \text{m/s}^2

v = Final velocity = 15 m/s

u = Initial velocity = 0

d = Distance moved by the object = 150 m

\theta = Angle of slope = 30^{\circ}

f = Force of friction

fd = Work done against friction

The force balance of the system is

\dfrac{1}{2}m(v^2-u^2)=(mg\sin\theta-f)d\\\Rightarrow \dfrac{1}{2}mv^2=mg\sin\theta d-fd\\\Rightarrow fd=mg\sin\theta d-\dfrac{1}{2}mv^2\\\Rightarrow fd=20\times \sin 30^{\circ}\times 150-\dfrac{1}{2}\times \dfrac{20}{9.81}\times 15^2\\\Rightarrow fd=1270.64\ \text{J}

The work done against friction is 1270.64\ \text{J}.

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Answer: Me non espanol

Explanation:

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joja [24]

Answer:

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Explanation:

As we know that work done to raise the book from initial position to final position is known as potential energy stored in it

So here we know that

U = F.s

here we know that

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s = displacement = 1.5 m

so we have

30 = F(1.5)

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6 0
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A water wave travels 36 meters in 15 seconds. What is the speed of the wave?
atroni [7]
2.4 meters per second

I hope this helps
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Explanation:

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