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
irina1246 [14]
3 years ago
14

IF a car trip 400 km in four hours what is the rate of speed that a car is traveling?

Physics
1 answer:
Andreas93 [3]3 years ago
8 0

Speed = Distance/ Time

Speed = 400 / 4

Speed = 100 km/hr.

100 km per hour.
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
Help me!!!!!!!!!!!!!!!!!!!!!!!
Gemiola [76]

Answer:a computer , machine forcery,0,push

Explanation:

8 0
3 years ago
An airplane travels 3,260 kilometers in 4 hours. What is the airplane’s average speed?
OLga [1]
3260÷4=815 which is you average seed
4 0
3 years ago
Pleae answer asap brcianset
marshall27 [118]

Answer:

>

Explanation:

1/8 is greater than 3/20

5 0
3 years ago
Please help me with this one
katen-ka-za [31]

Both of the pictures show how one picture is I believe in fall and the other one is in the forest and maybe in spring or summer. Also, the two pictures show 2 different animals. And maybe hunting for 2 different foods for them to survive.

* Hopefully this helps:) Mark me the brainliest:)

5 0
3 years ago
Other questions:
  • Which describes one event that causes an eclipse?
    12·1 answer
  • In a(n) BLANK , the matter’s identity stays the same.
    13·1 answer
  • What is the mass, in grams, of 2.90×10−3 mol of ammonium phosphate?
    14·2 answers
  • Why would an egg break immediately when it hits the ground?
    7·2 answers
  • How much kinetic energy does a baseball with a mass of 0.143 kg have it it is traveling at a velocity of 41.1 m/s?
    8·1 answer
  • Imagine Two Artificial Satellites Orbiting Earth At The Same Distance. One Satellite Has A Greater Mass Than The Other One? Whic
    8·1 answer
  • A Smart Car, which has a mass of 1000 kg, is going 20 m/s. When it hits the barrier, it stops with a time of 0.5 seconds. What i
    12·1 answer
  • Mrs Harper has a cup full of paper clips some are made of metal and others are made of plastic she wants to separate the metal p
    12·1 answer
  • What are the three different social perspectives on sport
    11·1 answer
  • a projectile is launched horizontally from a height of 65 meters with an initial horizontal speed of 35 meters pre second. what
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!