1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
adell [148]
3 years ago
15

Tracy makes a list of energy transformations that occur as an engine runs to power a car.

Physics
2 answers:
kari74 [83]3 years ago
8 0

Answer: The correct answer is "Chemical energy transforms into gravitational potential energy".

Explanation:

In the given problem, an engine runs to power a car. The internal combustion engine in the car is gasoline which converts chemical energy into the thermal energy. Then, this thermal energy gets converted into kinetic energy by causing to power a car.

The chemical energy is obtained from the fuel which is in an engine of the car converts into thermal energy.

The thermal energy is generated in an engine of the car converts into the electrical energy so that the car can be started.

There is no use of gravitational potential energy in a car as it is due to the height above the ground.

Therefore, the correct option is (3).

makvit [3.9K]3 years ago
3 0

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.

You might be interested in
Which statement is correct? (2 points) Select one:
Olin [163]
<span>The correct answer is B - Light can travel in a vacuum, and its speed is constant if the source is moving or stationary.</span>
7 0
3 years ago
An atom of calcium-48 and an atom of calcium-47 differ in
anygoal [31]
The 48 and 47 are different atomic masses, this is caused by having a different number of neutrons.
3 0
3 years ago
Read 2 more answers
an object starts at rest and accelerates until it is moving at 247 km/h. if it takes 1.7minutes for this change to occur what is
d1i1m1o1n [39]

The average acceleration in 0.67 m/s^2.

The average acceleration is calculated as change in velocity/time

a=(247*5/18)/(1.7*60)

=68.61/102=0.67 m/s^2

Therefor the average acceleration of the object is 0.67 m/s^2

5 0
3 years ago
Balance in the water cycle means what two are equal
Elena L [17]
It might mean that there is balance in rainfall and evaporation. 
3 0
3 years ago
A metal, conducting cylinder of length 0.25 meters contains a total charge of 0.5 coulombs. Use Gauss' Law to find the electric
aliina [53]

Answer:

Explanation:

Let assume that cylinder has a radius of 0.01 meters. The Gauss Law has the following form:

\frac{Q_{enc}}{\epsilon_{o}}= E\cdot A

The electric field considering the cylinder configuration that encloses the conducting cylinder is:

E = \frac{Q_{enc}}{\epsilon_{o}\cdot (2\cdot \pi \cdot R \cdot L)}

Where \epsilon_{o} is the absolute permittivity.

E=\frac{0.5\,C}{\left(8.854\times 10^{-12}\,\frac{C^{2}}{N\cdot m^{2}} \right)\cdot (2\cdot \pi)\cdot (0.011\,m)\cdot (0.25\,m)}

E = 3.268\times 10^{12}\,\frac{N}{C}

4 0
3 years ago
Other questions:
  • Tom has a new set of golf clubs. Using a club 8, the ball travels an average distance of 100 meters. Using a club 7, the ball tr
    5·1 answer
  • PLEASE HELP ME :)
    10·1 answer
  • A window washer stands on a scaffolding 30m above the ground. If he did 23,520J of work to reach the scaffolding, what is his ma
    11·1 answer
  • A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60∘ away from vertical increases fro
    8·1 answer
  • A circuit is built based on this circuit diagram. What is the equivalent resistance of the circuit?
    6·1 answer
  • true or false? J. J Thomson presented a plum pudding model of the atom. His model showed electrons randomly embedded in a cloud
    15·2 answers
  • A spring has a spring constant of 50 N/m. If you stretch the spring 0.2 m past'
    5·1 answer
  • Please can someone solve this physics question with a good explenation.
    12·1 answer
  • PLSS HELP WILL GIVE POINTS OR WHATEVER JUST PLS HELP I WILL GIVE 98 POINTS
    10·1 answer
  • Lab: Waves and Diffraction<br> Assignment: Lab Report<br> Anyone have this completed
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!