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
iren2701 [21]
3 years ago
13

Consider a grill with the lid closed to be a closed system. The propane provides chemical energy. The propane is ignited to prod

uce heat. The heat provides the thermal energy to cook the food in the grill. Which is true about the energy in this system? A. While some energy is destroyed and some is created, the total amount of energy is conserved. B. While the energy changes form from chemical to thermal, total energy is conserved. C. Chemical energy is destroyed in order to create thermal energy. D. While the energy changes form from chemical to thermal, the amount
Physics
1 answer:
katrin [286]3 years ago
6 0

'A' and 'C' talk about energy being created and destroyed.  That can't happen.

'D' trailed off in the middle, and we don't know WHAT it was talking about.

'B' is the only correct statement.


You might be interested in
How much time will it take to do 33j of work with 11 w of power
Yuri [45]

Time required : 3 s

<h3>Further explanation </h3>

Power is the work done/second.

\tt P=\dfrac{W}{t}\\\\P=power,j/s,watt\\\\W=work, J\\\\t=times=s

 

To do 33 J of work with 11 W of power

P = 11 W

W = 33 J

\tt t=\dfrac{W}{P}\\\\t=\dfrac{33}{11}\\\\t=\boxed{\bold{3~s}}

8 0
3 years ago
Why do most amphibians return to the water to reproduce?
Ymorist [56]
C. amphibian eggs do not contain a protective shell
5 0
2 years ago
Read 2 more answers
Which statement best describes a device that has a high energy efficiency? Its ratio of energy absorbed to energy released is hi
Stels [109]

Answer:

It wastes little energy

Explanation:

  • The efficiency of a machine refers to the ratio of work output to the work input as a percentage.
  • The efficiency of most machines is less than 100% because some work is lost  due to friction and heat.
  • Therefore, a machine with high efficiency has less wastage of energy due to factors such as friction of the moving parts. Conversely, low efficiency means there is more wastage of energy.
3 0
3 years ago
Read 2 more answers
What in earth's atmosphere helps most to absorb uvb ultraviolet light from the sun?
Whitepunk [10]
The Ozone layer in the atmosphere absorbs the UV rays

Hope it helps!
4 0
3 years ago
In your own words, answer the following 3 questions about an object experiencing red shift? 1. Describe the motion of an object
german

1.  When an object is moving away from us, the light from the object is known as redshift, and when an object is moving towards us, the light from the object is known as blueshift.

2.  A wavelength increases in size, and its frequency, and energy decrease.

3.  The frequency of a wave increases, and its wavelength decreases.

Redshift is an important term for astronomers. The term can be taken literally. The wavelengths of light are stretched and perceived as shifting toward the red portion of the spectrum. The same thing happens to sound waves when the source moves relative to the observer.

As the wave frequency decreases, the wavelength increases as long as the wave velocity remains constant. If the wave speed stays the same as the frequency decreases, it means that fewer wave peaks or troughs pass through a given point in a given time period. The number of complete wavelengths in a given unit of time is called frequency. Frequency and energy decrease with increasing wavelength.

Learn more about  A wavelength here:-brainly.com/question/24452579

#SPJ1

6 0
1 year ago
Other questions:
  • When approaching an intersection where the traffic signal is out you should?
    7·1 answer
  • Definition of synthesis
    8·1 answer
  • How did ALS impact Stephen Hawking?
    5·1 answer
  • How do scientist determine how old the world is and the fossils inside of it?
    7·4 answers
  • The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a parallel flow heat exchanger by water entering at 25 de
    9·1 answer
  • Airbags will deploy no matter from what angle your car is hit.
    7·2 answers
  • The forces of gravity between the earth and the moon causes
    10·1 answer
  • HELP 50 POINTS
    13·2 answers
  • Question 25
    10·1 answer
  • Where does reduction occur in an electrolytic cell
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!