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
kotykmax [81]
3 years ago
15

According to the second law of thermodynamics, which is a requirement for thermal energy to flow from colder objects to hotter o

bjects?
A. Work must be done on the system.

B. Thermal expansion must occur in the system.

C. Radiation must alter the system.

D. Convection must occur within the system.
Physics
2 answers:
yKpoI14uk [10]3 years ago
8 0

Answer:A. Work must be done on the system.

Explanation:

maxonik [38]3 years ago
4 0

Answer: work must be done on the system  (Option A)

Explanation:

The second law of thermodynamics is the fundamental law of nature; it states that energy can be transferred from cold objects to hot objects only, if work is done on the system. If energy is added to the system then as a result the thermal energy would increase. Second law of thermodynamics is used to determine whether a process is spontaneous or not.  Moreover,the second law of thermodynamics is also used in refrigerators.

You might be interested in
An engineer wishes to design a curved exit ramp for a toll road in such a way that a car will not have to rely on friction to ro
Dafna11 [192]

To solve this problem we will make a graph that allows us to understand the components acting on the body. In this way we will have the centripetal Force and the Force by gravity generating a total component. If we take both forces and get the trigonometric ratio of the tangent we would have the angle is,

T_x = nsinA = \frac{mv^2}{r}

T_y = ncosA = mg

Dividing both.

tan A = \frac{v^2}{rg}

tan A = \frac{11.7^2}{50*9.8}

A = tan^{-1} (0.279367)

A = 15.608\°

Therefore the angle that should the curve be banked is 15.608°

7 0
3 years ago
Who is responsible of refraction light 1/3 in eye
alexandr1967 [171]

The cornea is  responsible of refraction light 1/3 in eye.

<h3>What is the function of the cornea?</h3>

In addition to the protective function, it plays a fundamental role in the formation of vision. Transparent, it works like a lens over the iris, focusing light from the pupil towards the retina.

Normally, the cornea and lens deflect (refract) incoming light rays, focusing them on the retina. The shape of the cornea is fixed, but the lens changes shape to focus on objects at different distances from the eye.

See more about cornea at brainly.com/question/2297282

#SPJ12

3 0
2 years ago
The liver’s role is to:
Lelu [443]
D. The liver's role is to remove harmful substances from the blood.
7 0
3 years ago
Currently, is our planet an open or closed system?
Dmitrij [34]
Our planet is closed system because there is a limit of how much matter could be exchanged.
8 0
2 years ago
A change to an objects motion is caused by...
andrezito [222]

Answer:

b-unbalanced forces

Explanation:

because the net force then is not a zero

4 0
3 years ago
Other questions:
  • Technician A says that the starter motor used to crank diesel engines can draw up to 400 amps of current. Technician B says that
    9·1 answer
  • What is heat? I need help
    5·1 answer
  • How many significant figures are in the following measurements ?
    13·2 answers
  • Flower bed is filled with five types of flowers. Which placement of the flowers represents the highest entropy?
    11·2 answers
  • A bumper has a non negligible mass. After a collision with an ideal spring, the spring is compressed to a distance of 90% of the
    8·1 answer
  • Is anyone good with 9-10th grade physics?? Please pm me I have a few questions.
    15·1 answer
  • Light year is a unit of?
    8·1 answer
  • A 100kg object initially traveling at 20 m/s is decelerated to 10 m/s during a time interval of 10 seconds. What is the final mo
    8·2 answers
  • Which is the BEST explanation for why the speed of sound changes for solids, liquids, and gases?
    14·1 answer
  • A coin is dropped from a height of 421 m. calculate the velocity of the coin after 3 s​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!