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
inn [45]
3 years ago
14

7. A locomotive is pulling 19 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car

(with its load) is 37,000 kg. If the train is accelerating at 0.22m/s2 on a level track, what is the tension in the coupling between the second and third cars
Physics
1 answer:
KiRa [710]3 years ago
8 0

Answer:

N 138380

Explanation:

Force = ma where m is the mass in kg and a is acceleration

the locomotive is pulling 19 freight cars mass of each car is 37 000 kg

the train accelerating at 0.22 m/s²

the tension in the coupling between the second and third cars = the tension between the second and third cars pulling the third car to the 19 th car = 17 × 37000 kg × 0.22 m/s² = N 138380

You might be interested in
What happens to metal railroad tracks during the heat of a summer day
Oksanka [162]
The railroad tracks will expand because the heat waves make them bigger

4 0
3 years ago
Read 2 more answers
Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?
Contact [7]
The bowling ball will require more force to roll because it is more massive.
3 0
3 years ago
Read 2 more answers
Propose an experiment that could be used to demonstrate that friction is a contact force?
vesna_86 [32]
Maybe push or pull an object with a large amount of mass? you are force a (pushing through object) aka making contact. i hope i helped not good with physics :)
3 0
3 years ago
Read 2 more answers
are the properties of a specific element the same as the properties of a molecule made up of that element ? why or why not
konstantin123 [22]
Because it’s science
8 0
3 years ago
Three pendulums all have the same length and start from the same height. The first pendulum is very light and has a mass of 67 g
vovikov84 [41]

Answer:

All three pendulum will attain same velocity

Explanation:

All three pendulum will attain same velocity irrespective of their mass difference in isolated system (means where air drag are negligible) and at same length

As you know when velocity is calculated we can not take mass into account.  

3 0
3 years ago
Other questions:
  • If many household substances classify as acids or bases what is the ph scale
    15·1 answer
  • Explain why the elements nitrogen, oxygen, and hydrogen are often found in both the Earth's atmosphere and crust.
    6·1 answer
  • Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours leave your answer in kilometers per hour
    13·1 answer
  • Slick Willy is in traffic court (again) contesting a $50.00 ticket for running a red light. "You see, your Honor, as I was appro
    10·2 answers
  • 12. The bond formed when two atoms share a pair of electrons is called a
    8·1 answer
  • Density is ____ per unit volume.
    5·2 answers
  • 50 points!
    14·1 answer
  • A car starts at the top of a hill with 200 J of energy, and rolls down a frictionless surface. The isolated system consists of t
    8·1 answer
  • TRUE or FALSE: Feeling "weightless" can be the result of accelerating downwards towards Earth.
    15·1 answer
  • The process by which land remove surface materials is called
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!