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
Dimas [21]
1 year ago
5

Question 1 of 7What is the change in internal energy if 90 J of thermal energy is added to asystem, and the system does 30 J of

work on the surroundings? Use AU = Q -W.OA. 130 JB. -60 JC. -130 JSUBMITOD. 60 J
Physics
1 answer:
Dmitriy789 [7]1 year ago
5 0

Given:

The thermal energy added to the system is Q = 90 J

The work done by the system on the surroundings is W = 30 J

To find the change in internal energy.

Explanation:

According to the first law of thermodynamics, the change in internal energy can be calculated by the formula

\Delta U=\text{ Q-W}

On substituting the values, the change in internal energy will be

\begin{gathered} \Delta U\text{ =90-30} \\ =60\text{ J} \end{gathered}

Final Answer: The chage in internal energy is 60 J (option D)

You might be interested in
Who was the discoverer of the neutron
Pavel [41]

Answer:

James Chadwick

Explanation:

In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron

6 0
2 years ago
Read 2 more answers
Veins contain a network of valves to insure a one-way flow of blood but arteries do not. This is because veins must counteract t
Elena-2011 [213]
They must counteract the force of blood pressure
6 0
3 years ago
Read 2 more answers
What does more damage; a slow semi truck, or a fast sports car
Goshia [24]
The fast sports car does more damage then the slow semi truck
7 0
3 years ago
Please answer will give brainliest
laila [671]

3b. No

4a. 50N


I hope this helps


8 0
3 years ago
Which are examples of transverse waves? Check all that apply. earthquake P-waves earthquake S-waves radio waves sound visible li
Mariulka [41]
Earthquake S - Waves are examples of transverse waves. The correct option among all the options that are given in the question is the second option. Other good examples of transverse waves are an oscillating string and light waves. A wave is a kind of disturbance that or an oscillation that travels through space.
8 0
3 years ago
Read 2 more answers
Other questions:
  • A charge of -3.02 μC is fixed in place. From a horizontal distance of 0.0377 m, a particle of mass 9.43 x 10^-3 kg and charge -9
    12·1 answer
  • You have 0.5 l of air at a pressure of 203 kpa and -70°c in a rigid, sealed contaainer. what is the absolute tempertaure of the
    14·1 answer
  • 1. In a biology experiment the number of yeast cells is determined after 24 hours of growth at
    5·1 answer
  • A 10000 kg rocket blasts off vertically from the launch pad with a constant upward of 2.25 m/s2 and feels no appreciable air res
    12·1 answer
  • Βββββββββββββ<br>fbntdbsv
    13·1 answer
  • The diagram below illustrates the law of reflection.
    15·1 answer
  • If an object is not accelerating, it can exist in what 2 other states of motion?
    13·1 answer
  • What is the wavelength of a wave?
    8·1 answer
  • Over the past 100 years earths temperature
    13·1 answer
  • Need help but the subject is science will give brainleist
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!