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
dem82 [27]
3 years ago
8

a train travels 99 kilometers in 3 hours, and then 80 kilometers in 5 hours. What is it’s average speed?

Physics
1 answer:
Karolina [17]3 years ago
6 0

Average speed = (total distance covered) / (time to cover the distance)

Total distance covered = (99km + 80km) = 179 km

Time to cover the distance = 8 hours

Average speed = (179km / 8hours)

Average speed = 22.375 km/hour

You might be interested in
Which term below describes a measurement of how hard an object pushes against a surface?
Scilla [17]

I hope the answer is D. Pressure

8 0
2 years ago
Read 2 more answers
What force is required to accelerate a 385 kg couch at 0.2 m/s^2 ?
Juliette [100K]

Answer:

It takes 77 N

Explanation:

Using Newton's second law of motion, F=ma (Force equals mass times acceleration. Since the mass of the couch is 385 kg and the target acceleration is 0.2 m/s, you simply multiply mass times acceleration (ma) to get the total force, or 77 N.

6 0
2 years ago
Which model best represents a pattern?
balandron [24]
The water cycle because <span>the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain.

it is like a pattern

hope that was helpful.</span>
3 0
2 years ago
Read 2 more answers
Consider the following situations: i. A ball moving at speed v is brought to rest ii. The same ball starts at rest and is projec
tatyana61 [14]

Answer:

c. Case iii

Explanation:

the ball will experience the largest change in case iii

3 0
2 years ago
Does anyone know who to do this
Whitepunk [10]
Is it science ? cause the word blocks you just need to see which matches up with each word and make its way down
6 0
3 years ago
Other questions:
  • A bug on the surface of a pond is observed to move up and down a total vertical distance of 6.5 cm , from the lowest to the high
    9·1 answer
  • PLEASE HELP AND HURRY!!!!!!!!!
    13·1 answer
  • A driver of a car enters a new 110 km/h speed zone on the highway. The driver begins to accelerate immediately and reaches 110 k
    10·1 answer
  • Consult Conceptual Example 9 in preparation for this problem. Interactive LearningWare 6.3 also provides useful background. The
    7·1 answer
  • To properly operate the laboratory thermometer Group of answer choices it needs to be shaken but make sure you have enough room
    7·1 answer
  • The solid steel shaft AC has a diameter of 25 mm and is supported by smooth bearings at D and E. It is coupled to a motor at C ,
    5·1 answer
  • An astronaut weighs 8.00 × 102 newtons on the sur- face of Earth. What is the weight of the astronaut 6.37 × 106 meters above th
    6·1 answer
  • Which of the following are examples of levers?
    7·1 answer
  • How can you show that an electric current has a magnet affect​
    6·1 answer
  • A boy lifted a 50 newton rock 1 meter. How much work was done?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!