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
marin [14]
3 years ago
7

Calculate the change in total internal energy for a system that releases 2.59 × 104 kJ of heat and does 6.46 × 104 kJ of work on

the surroundings. Enter your answer in scientific notation.
Physics
1 answer:
mrs_skeptik [129]3 years ago
8 0

Answer:

See explanation below

Explanation:

The equation to use for this is the following:

dU = q + w

As the heat is being release, this value is negative, and same here happens with the work done, because it's in the surroundings.

Therefore the change in the energy would be:

dU = -2.59x10^4 - 6.46^4

dU = -9.05x10^4 kJ

You might be interested in
Three point charges, two positive and one negative, each having a magnitude of 20 C are placed at the vertices of an equilateral
Daniel [21]

The resultant force on the positive charge  is mathematically given as

X=40N

<h3>What is the magnitude of the electrostatic force on the negative charge?</h3>

Question Parameters:

Three-point charges, two positive and one negative, each having a magnitude of 20

Generally, the -ve charge   is mathematically given as

Q+=\sqrt{x^2+x^2+2x.xcos120}\\\\Q+=\sqrt{2x^2+2x*(1/2)}

Q+=X

Therefore

x=\frac{Kq1q2}{r2}\\\\x=\frac{9*10^9*20*10^{-6}*20*10^{-6}}{(30*10^-2)^2}

X=40N

For more information on Force

brainly.com/question/26115859

5 0
2 years ago
A rock from space in Earth's Atmosphere would be considered?
Gnesinka [82]

Answer:

A meteor mate

Explanation:

hope this helps

8 0
3 years ago
Sound travels faster in: steel water sir
alukav5142 [94]
Sound travels better in water
8 0
3 years ago
What is the speed of sound for a noise that travels 2km in 5.8s?​
Gnesinka [82]

Answer:

Explanation:

Speed is defined as the rate at which an object covers a particular distance. So the formula for determining speed is given as the ratio of distance to time taken for covering that distance.

Speed = Distance/Time

As here the distance is given in km units and time in s units, so the units of any one parameter should be changed. Since we know that speed of sound is always about 300 m/s. So it is better to convert the unit of distance from km to m.

Hence, now the distance traveled by the noise is 2000 m and time taken is 5.8 s.

So the speed of noise = Distance/Time = 2000/5.8=345 m/s.

Thus, the speed of noise is slightly greater than the speed of sound and it is found to be 345 m/s.

5 0
3 years ago
Sketch the resultant field pattern around the following current carrying conductors and
Novay_Z [31]
Cccccccvvvvvcjjjjjjjjjjkllk ki e
8 0
3 years ago
Other questions:
  • When introduced into a region where an electric field is present, an electron with initial velocity will eventually move?
    6·1 answer
  • Electromagnets are created by?
    14·2 answers
  • The British attempted to break the land-speed record and the sound barrier using a jet-powered car. They made their attempt in t
    7·2 answers
  • Which of these waves cannot travel in a vacuum?
    13·2 answers
  • Two blocks are sliding to the right across a horizontal surface, as the drawing shows. In Case A the mass of each block is 3.0 k
    8·1 answer
  • How are airplanes artificially pressurized?
    8·1 answer
  • A train travels with a constant speed of 20.0m/s for 7.00s. Determine all
    8·1 answer
  • What is meant by "steam distillation"? choose the correct option from below.
    14·1 answer
  • Plz help me answer this its 1 question will give brainliest
    11·2 answers
  • The pressure in a fluid is affected by which characteristic of that fluid?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!