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
amm1812
3 years ago
10

Consider a system to be one train car moving toward another train car at rest. When the train cars collide, the two cars stick t

ogether.
What is the total momentum of the system after the collision?
800 kg • m/s
1,600 kg • m/s
2,400 kg • m/s
4,000 kg • m/s

Physics
2 answers:
sweet [91]3 years ago
5 0

Answer:

C. 2,400 kg • m/s

Explanation:

Doing it now! Good luck

oee [108]3 years ago
3 0

Answer:

Momentum after = 2400 kgm/s

Explanation:

Momentum after = momentum before

Momentum after = m1v1 +m2v2

Momentum after = (600)(4) + (400)(0)

Momentum after = 2400 kgm/s

You might be interested in
Why are not all microorganism harmful?
son4ous [18]


In nature there are two categories of microorganisms as relating to health. Microorganisms that are considered harmful to humans are called pathogens and these cause disease. Examples include bacteria such as streptococcus which cause sore throat and salmonella which cause typhoid disease.

 There are some microorganisms which are helpful to man and they live mostly on the skin of man or in his gut and are mostly bacteria. They are collectively called bacterial normal flora.

In man the normal bacterial flora of the skin include staphylococcus found on dry skin, cornybacteria found in moist skin sites and propionibacteria in the sebaceous sites (head, neck, trunk) of the body. Normal bacterial flora of the gut include Escherichia coli.

One of the major function of bacterial flora is actually to protect our bodies  by competing for space with pathogens preventing them from gaining a foothold in our bodies.



8 0
3 years ago
Which of the following are NOT two of the best ways to StaySafe around electricity?
creativ13 [48]

1) Sleeping with an electronic in charge right next to you.

2) Leaving a charger plugged in all the time especially near liquid substances.

3 0
3 years ago
Which process produces rising air when mountains push the air upward?
kicyunya [14]

Answer;

A. orographic lifting

Explanation;

Orographic lifting is a process that takes place when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain.

This can be explained by;  When air is blocked by mountains, it cannot go through these mountains, As it ascends or moves up the mountain, the air then cools as it rises and when it cools to its saturation point, the water vapor condenses and cloud forms.

These clouds formed  are known as orographic clouds, that develop in response to the lifting forced by the topography the earth.

5 0
3 years ago
Read 2 more answers
If an object is projected horizontally from a height of 5 m with an initial velocity of 7 m/s, what is the value of x0?
tatiyna
ANSWER IS D X0=9.8m/s^2
5 0
2 years ago
The diagram below shows the structural formula and 3D model of the same substance. Which substance is represented by the diagram
Agata [3.3K]
I feel like its C but mmmm idk
4 0
3 years ago
Other questions:
  • Select the higher harmonics of a string fixed at both ends that has a fundamental frequency of 80 Hz.
    8·1 answer
  • A block of mass of 10kg is being pushed on a tabletop downwards by a force of 200N. There is no acceleration in the problem. Cal
    11·1 answer
  • What happens when a electron and a proton get close together?
    15·1 answer
  • A constant force is exerted for a short distance on a block of mass that is initially at rest on a horizontal frictionless plane
    12·1 answer
  • BRAINLEST HURRY PLZZ HELP<br> the options for number 1 2 and 3 are A B C D
    9·2 answers
  • Which water depth had the biggest difference in survival rates for embryos with UV-B protection versus embryos without UV-B prot
    15·1 answer
  • Using up resources at a rate in which they can be replaced is called:
    5·1 answer
  • The linear expansivity of metal P is twice that of another metal Q. When these materials are heated through the same temperature
    8·1 answer
  • PLEASEE HELP!!!!!!Why are the youth not getting involved in their communities and voting? How is media influencing the voters?
    15·1 answer
  • A scientist in central Nebraska is studying factors that affect the formation of tornadoes. How might the scientist benefit from
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!