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shusha [124]
3 years ago
9

What energy transformations take place in Joule's system?

Physics
2 answers:
GREYUIT [131]3 years ago
5 0
The steam turns the turbine of an electrical generator, and the heat energy is transformed into the kinetic energy of the spinning turbine. The generator spins coils of wire in a magnetic field, transforming its kinetic energy into electrical energy.
IceJOKER [234]3 years ago
4 0

The gravitational potential energy of the weight changes to motion energy when the weight moves down and the paddle wheel spins. The motion energy changes to thermal energy, causing the water’s temperature to rise.

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Please help me with this question
snow_lady [41]

politics. Famous possible eg is of Werner Heisenberg in WW2. He delayed German attempt to build a nuclear bomb. US did build one ... hiroshima and nagasaki.

debbie may have got skilfully lucky by trial and error

6 0
3 years ago
Read 2 more answers
When the mirror is rotated, the normal will turn as well, but will the incident Ray and reflected ray turn?
Inessa [10]

When a mirror is rotated . . .

-- The incident ray doesn't turn.  It's just the line from the source to the mirror. 
It would be there, in the same place, even if there was no mirror.

-- The normal turns.  It's the line perpendicular to the mirror, so it must turn
with the mirror.

-- Since the normal tuns and the incident ray doesn't, the angle between them
must change.  And since the angle of the reflected ray is equal to the angle of
the incident ray, the reflected ray must also turn.


6 0
3 years ago
Tracy makes a list of energy transformations that occur as an engine runs to power a car.
makvit [3.9K]

3. Chemical energy transforms into gravitational potential energy.

Explanation:

First of all, let's check the definition for each type of energy:

- Chemical energy is the energy stored in the chemical bonds inside compounds and substances

- Thermal energy is the energy due to the random motion of atoms/molecules (heat)

- Electrical energy is the energy related to the motion of electrical charges

- Gravitational potential energy is the energy of an object which is placed at some height above the ground

- Kinetic energy is the energy of an object in motion

Given this definition, we can check each energy transformation to see which one are really involved in the engine used to power the car:

1. Chemical energy transforms into thermal energy. --> YES. This one is present: in fact, the chemical energy contained in the fuel is converted inside the engine into heat (thermal energy)

2. Thermal energy transforms into electrical energy. --> YES. The heat (thermal energy) used in the engine is converted into electrical energy used to turn on the car.

3. Chemical energy transforms into gravitational potential energy. --> NO. There is no gravitational potential energy involved in this example, since the car runs on the ground.

4. Thermal energy transforms into kinetic energy. --> YES. The heat (thermal energy) used in the engine is converted into energy of motion of the car.

Therefore, Tracy should remove option 3) from her list.

3 0
3 years ago
Read 2 more answers
What is the pressure exerted by 0.801 mol of co2 in a 12 l container?
Svetlanka [38]
We assume that the gas is an ideal gas so we can use the relation PV=nRT. Assuming that the temperature of the system is at ambient temperature, T = 298 K. We can calculate as follows:

PV = nRT
P = nRT / V
P = (0.801 mol ) (0.08205 L-atm / mol-K) (298.15 K) / 12 L
P = 1.633 atm
8 0
3 years ago
Which level of organisms get the most energy out of the food they make or consume?
boyakko [2]
Higher-level consumers get the most energy from food they eat.
An example is a lion eating a zebra. The zebra has more energy than a handful of grass, which has almost none to offer.
6 0
3 years ago
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