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
lilavasa [31]
2 years ago
13

EXERCISE 1

Physics
1 answer:
denpristay [2]2 years ago
5 0
.........The answer is A
You might be interested in
7. 13 a turbine receives steam at 6 mpa, 600°c with an exit pressure of 600 kpa. Assume the turbine is adiabatic and neglect kin
AnnyKZ [126]

The work done by the turbine will be 708.2 kJ/kg. The work done by the turbine is the difference of the enthalpy at inlet and exit.

<h3 /><h3>What is temperature?</h3>

Temperature directs the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity. Faster the motion of particles, more the temperature.

If the given turbine is assumed to be reversible;

\rm P_I(Initial pressure)=60 mpa = 60 bar

\rm  T_i(Initial temperature)=600° C

\rm P_e (Exit pressure)=600 kpa=6 bar

The heat balance equation is;

\rm q-W_t=h_e-h_i\\\\ q=0\\\\\ W_t=h_i-h_e

The change in the entropy is;

\rm S_2-S_1=\frac{\delta q}{dt}

The work done by the turbine is;

\rm W_t = h_i-h_e\\\\ W_t =3658.4 -29.5019\\\\  W_t =708.2 \ kJ/kg

Hence,the work done by the turbine will be 708.2 kJ/kg.

To learn more about the temperature, refer to the link;

brainly.com/question/7510619

#SPJ4

6 0
2 years ago
To model time-variant data, one must create a new entity in an m:n relationship with the original entity.
Ksenya-84 [330]

To model time-variant data, one must create a new entity in an m:n relationship with the original entity, is a False statement.

  • Like the majority of software engineering initiatives, the ER process begins with gathering user requirements. What information must be retained, what questions must be answered, and what business rules must be implemented (For instance, if the manager column in the DEPARTMENT table is the only column, we have simply committed to having one manager for each department.)
  • The end result of the E-R modeling procedure is an E-R diagram that can be roughly mechanically transformed into a set of tables. Tables will represent both entities and relationships; entity tables frequently have a single primary key, but the primary key for relationship tables nearly invariably involves numerous characteristics.

To know more about  entity AND relationship  visit : brainly.com/question/28232864

#SPJ4

6 0
1 year ago
What is the size of the smallest vertical plane mirror in which a 6 ft tall person standing erect can see her full-length image?
Alex Ar [27]

Answer:

3 ft

..................

5 0
3 years ago
AJUTOR VA ROG LA FIZICA IMI TREBUIE NOTA!!!!!!!!!!
vlabodo [156]

Answer:

gkcfgggxg hhfdc ghgffgccvvc

bjvhgf

Explanation:

gjhghujj bhhgghj

4 0
3 years ago
Which circuit has three non-identical resistors that must have the same voltage drop?
Lelu [443]

D do.

All 3 resistors are connected directly across the battery.

5 0
2 years ago
Other questions:
  • Are we the same age as the universe because matter cannot be created nor destroyed
    8·2 answers
  • if a water wave vibrates up and down 4 times each second,the distance between 2 successive crest is 5 meters, and the height fro
    13·2 answers
  • The work done on a 10 kilogram mass to give it a speed of 5 meters per second is
    8·1 answer
  • When Kevin pulls his cotton shirt off his body, the electrons get transferred from the (shirt or body) to the (shirt or body) .
    13·1 answer
  • A 397-N wheel comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it is rotating at 25.
    10·1 answer
  • Based on the image below, what would an observer on the nighttime side of Earth observe?
    9·2 answers
  • PLEASE HELP!!!!
    12·1 answer
  • As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself.There is no one ar
    8·1 answer
  • What is a quasar made of?
    12·1 answer
  • How does the temperature of water change when it is heated on a stove top and then begins to boil?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!