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
Serga [27]
3 years ago
5

Zad. 1. Jaką pracę wykona dźwig, który pracował przez 1,5 h napędzany silnikiem o mocy 200 kW?

Physics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

Explanation:

1) Moc to wskaźnik czasu pracy w stosunku do czasu.

Moc = czas pracy / czas

Czas pracy = moc * czas

Podana moc = 200 kW = 200 000 Watów

Czas = 1,5 godziny = 1,5 * 3600 = 5400 sekund

workdone = 200 000/5400

Obróbka = 37,04 dżula

2) Moc = Gotowe / czas

Od zakończenia = Siła * Odległość

Moc = siła * Odległość / czas

Podana siła = 300 N.

Odległość = 2,5 m

czas = 0,5 min = 0,5 * 60 = 30 sekund

Moc = 300 * 2,5 / 30

Moc = 25 watów

3) Moc = Gotowe / czas

Czas potrzebny = praca / moc

Biorąc pod uwagę pracę wykonaną przez ciągnik = 10 MJ = 10 * 10 ^ 6 Dżuli

Moc = 100 kW = 100 000 watów

Czas wzięty = 10 ^ 7/10 ^ 5

Zajęty czas = 100 sekund

You might be interested in
Which is a true statement?
aivan3 [116]
Hi! The answer is ‘B’! Because the nucleus is found at the center and contains protons (positive charge) and neutrons (no charge)
8 0
3 years ago
Solving equation for the quantity indicated
Slav-nsk [51]
T = (vf -vo)/a. .......
7 0
3 years ago
Read 2 more answers
If a bicycle travels 1200m, and it takes 300seconds, what is its speed in m/s.
ch4aika [34]
Answer: 4

Explanation: speed= distance/time
7 0
3 years ago
How is the sun related to nuclear electromagnetic and heat energy?
erik [133]
The sun creates nuclear energy in it's core and as a byproduct heat is created. It gives this off in the form of heat and radiation.
7 0
3 years ago
A 10.0 kg mass is at the origin. A 20.0 kg mass is 0.500 m to the left of it, and a 30.0 kg mass is 1.25 m to the right of it, w
IRINA_888 [86]

Explanation:

100N please mark me brainliest

4 0
3 years ago
Other questions:
  • How do you find the change in potential energy
    14·1 answer
  • The image shows a model of the gravitational field around Earth. Which best describes the model?
    12·2 answers
  • If it were possible to remove gravity and friction, think about what would happen to a football if it were tossed into the air.
    7·2 answers
  • What is electrons ? explain it function<br>​
    13·2 answers
  • A scientist spends most of his time observing the night time sky and tracking the orbits of planets. Which branch of physical sc
    11·1 answer
  • Which of the following values has the greatest number of significant figures? Justify your answer?
    8·1 answer
  • Can some one help me on my online class physical science I need it finished but Wednesday to graduate in 1 week will pay $90 dol
    11·1 answer
  • If a car races around a 2.3 mile oval track 220 times, what is the displacement of the car in meters when it crosses the finish
    5·1 answer
  • Kevin decides to soup up his car by replacing the car's wheels with ones that have 1.4 times the diameter of the original wheels
    11·1 answer
  • The 7.4 N weight is in equilibrium under
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!