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
DedPeter [7]
3 years ago
11

A train Traveled from hong kong to beijing. It traveled at an average speed of 160 km/h in the first four hours. After that, it

traveled at another average speed of 180 km/h. If the distance between hong kong to beijing is 1180 km, what was the total time for the whole journey
Physics
1 answer:
4vir4ik [10]3 years ago
3 0
The answer is 7 hours
You might be interested in
Consider burning paper and making a pie. Why would these actions be classified as chemical changes?
Dmitry [639]

they are irreversible (you can't unburn paper) and affect the chemical composition of the object (when paper burns, it transforms the nearby oxygen into carbon dioxide using the carbon in the paper)

3 0
3 years ago
The most expensive benefit is usually ______. a. life insurance b. retirement c. health care d. day care
ch4aika [34]
The answer is C. Health Care
3 0
4 years ago
Read 2 more answers
Can you tell from the coefficient of restitution whether a collision has added kinetic energy to a system, taken some away, or l
Maurinko [17]
For an inelastic collision where coefficient of restitution,e, is equal to 0, the momentum is conserved but not the kinetic energy. So, there is addition or elimination of kinetic energy.

On the otherhand, when e = 1, like for an elastic collision, kinetic energy and momentum is conserved. Thus, the system's kinetic energy is unchanged.
6 0
3 years ago
A gas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kPa to a final volume of 0.065 m^3 while its te
USPshnik [31]

Answer:

286

Explanation:

p1v1/T1=p2v2/T2

then subtitude your values

T2=760*0.65*273/210*0.040

T2=135/8.4=16+273=289

7 0
4 years ago
Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el
julia-pushkina [17]
The solution as per the attached photo.

4 0
4 years ago
Other questions:
  • Please answer these two questions ASAP!! Will mark brainliest and give points!
    10·2 answers
  • A regulation basketball has a 22 cm di-
    10·1 answer
  • Consider a book that weighs 15 N at rest on a flat table. How many newtons of support does the table provide?
    13·1 answer
  • Earth is the only planet able to support what
    13·2 answers
  • Which theory of language development and acquisition includes the concepts of reinforcement, stimuli control, deprivation, and a
    11·1 answer
  • Explain why the gravitational acceleration of any object near earth is the same matter what was the mass of the object
    15·1 answer
  • A metal box, attached to a small parachute, is dropped from a helicopter. explain in terms of the forces acting; why:
    12·2 answers
  • What should a graph of the velocity vs time look like if it shows an object moving toward the motion detector at a constant spee
    15·2 answers
  • A thin ribbon of magnesium burns in the air creating a really bright light. When it is finished burning, there is only a powder
    7·1 answer
  • 5)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!