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Stells [14]
4 years ago
11

Identify two different objects that transform chemical energy into mechanical energy, and chose one object in the room and descr

ibe the energy transformation that occurs.
Physics
2 answers:
IgorLugansk [536]4 years ago
8 0

Answer:

~Shooting off fireworks, igniting that bottle rocket converts the fuel inside into an exhaust gas which propels the rocket.

~Automobiles, trains, planes all have combustion engines.

Explanation:

An automobile engine converts the chemical energy stored in the gasoline into the mechanical energy that turns the wheels. Chemical energy is usually converted into thermal energy through combustion, and that heat used to move a piston or spin a turbine

                                                     

                                           HOPE THIS HELPED!!!!!!!

UNO [17]4 years ago
7 0

Answer:

See the explanation below.

Explanation:

An example of chemical to mechanical energy is that of a battery for a toy car, the chemical energy of the battery is used to produce movement of the toy car.

And another example is the coal, its energy is used for water heating and steam generation to move a turbine (make the turbine turn).

If in my room I take a book that is on top of a shelf, its energy changes from potential to kinetic energy as I move it with my hand and decreased the height of the book relative to its initial value.

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kvasek [131]
Option D would be the correct one!
7 0
3 years ago
You drop a rock off the top of a building. It takes 3.4 s to hit the ground. What is the velocity at impact (final velocity)? I
SCORPION-xisa [38]
-- The acceleration of gravity (on Earth) is 9.8 m/s².

-- That means that during every second an object falls,
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Now !    If it adds 9.8 m/s of speed every second, then
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3 0
3 years ago
Gauss's law: Group of answer choices can always be used to calculate the electric field. relates the electric field throughout s
kvasek [131]

Answer:

relates the electric field at points on a closed surface to the net charge enclosed by that surface.

Explanation:

Gauss Law states that overall electric flux of a closed surface is equivalent right to charge enclosed which is divided by the permittivity. In other words Gauss Law stress that

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The Gauss law can be expressed mathematically as

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5 0
3 years ago
What happens to the frequency and pitch of sound if the object making the sound moves away from you ?
Olin [163]

If you and the source of sound are moving apart, then the pitch (frequency) <em>you hear</em> is <em>lower</em> than the pitch (frequency) that's actually leaving the source.  

It doesn't matter whether you or the source is the one moving, only that the distance between you is increasing.

8 0
3 years ago
A certain spring stretches 15 cm when a load of 50.0 N is suspended from it. How much will the spring stretch if 78N is suspende
andriy [413]

Answer:

23.4 cm

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