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
andreev551 [17]
3 years ago
11

In a certain time interval, natural gas with energy content of 19000 J was piped into a house during a winter day. In the same t

ime interval sunshine coming through the windows delivered 2000 J of energy into the house. The temperature of the house didn't change. What was ?Ethermal of the house, and what was |Q|, the magnitude of the energy transfer between the house and the outside air?
?Ethermal = J

|Q| = J
Physics
1 answer:
Bumek [7]3 years ago
5 0

Explanation:

Since, it is mentioned the there occurs no change in the temperature. This also means that there will occur no change in thermal energy of the system.

Hence, \Delta E = 0. And, as \Delta E = 0 then there will be no work involved. This means that total energy added to the house will return to the outside air as heat.

Therefore,

                   Q = -(19000 J + 2000 J)

                       = -21000 J

or,    |Q| = 21000 J

Thus, we can conclude that the magnitude of the energy transfer between the house and the outside air is 21000 J.

You might be interested in
HELP!
Angelina_Jolie [31]

Answer:

speed is increasing.

this is because the graph has a positive slope (due to it going up ), if it were decreasing, the graph would be going down

4 0
3 years ago
Read 2 more answers
The ability of your joints and muscles to move in their full range of motion is called
Studentka2010 [4]

Answer:

Dynamic flexibility

Explanation:

Dynamic flexibility can be generally defined as the ability of the body muscles and joints to move in full range of motion. High flexibility in these joints and muscles leads to the decreasing pain and injury in different parts of the body.

Proper warm up exercises are needed to be carried out that involves both the combination of controlling movements and stretching of the body, and this directly enhances the dynamic flexibility of the body.

The athletes and sports persons possesses a good dynamic flexibility of their body as they carry our different types of body exercises.

6 0
3 years ago
You decide to roll a 0.11-kgkg ball across the floor so slowly that it will have a small momentum and a large de Broglie wavelen
Oksanka [162]

The de Broglie wavelength \lambda = 4.0\times 10^{-30}m

We know that

de Broglie wavelength = \lambda = \frac{h}{mv}\lambda = \frac{6.63\times 10^{-34}}{0.11\times 1.5 \times 10 ^{-3}}

\lambda = 4.0\times 10^{-30}m

<h3>What is de Broglie wavelength?</h3>

According to the de Broglie equation, matter can behave like waves, much like how light and radiation do, which are both waves and particles. A beam of electrons can be diffracted just like a beam of light, according to the equation. The de Broglie equation essentially clarifies the notion of matter having a wavelength.

Therefore, whether a particle is tiny or macroscopic, it will have a wavelength when examined.

The wave nature of matter can be seen or observed in the case of macroscopic objects.

To learn more about de Broglie wavelength with the given link

brainly.com/question/17295250

#SPJ4

3 0
1 year ago
Why do we balance chemical equations
antiseptic1488 [7]
So it could follow the correct mass for the atom
5 0
3 years ago
why do you think it is difficult to use carbon-14 to determine the age of extremely old objects (over 50,000 years)?
marusya05 [52]
Carbon-14 has a relatively small half life of 5,730 years
6 0
3 years ago
Other questions:
  • when abnormal antibodies in the blood start to target tissues within the body causing pain and swelling in joints general fatigu
    5·2 answers
  • The force component along the displacement varies with the magnitude of the displacement, as shown in the graph. (a) 0 to 1.0 m,
    6·1 answer
  • Examine the spectra of the four unknown substances shown below. What can you conclude?
    6·2 answers
  • Gravity is dependent on which of the two factors?
    10·1 answer
  • On the Moon, the acceleration due to the effect of gravity is only about 1/6 of that on Earth. An astronaut whose weight on Eart
    15·1 answer
  • which of the following best represent positive self-talk A. "I'm making progress". B. "its just not my day". "I've tried. I just
    12·1 answer
  • I would give brainliest if you have me!
    5·1 answer
  • The temperature of a substance is 45 C. Convert this to Kelvin.
    14·1 answer
  • : To determine the focal length of a lens, the following except _ is needed
    12·1 answer
  • Please can someome answer this question with working out​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!