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
zvonat [6]
3 years ago
9

A train travels 225 kilometers in 2.5 hours . what's the trains average speed

Physics
2 answers:
FromTheMoon [43]3 years ago
8 0
Answer=90 kilometers per hour

 225 km    2.5hours

225km/2.5hours=90 kilometers per hour

The average speed is 90 kilometers per hour
Maslowich3 years ago
7 0
Let us first concentrate and write down all the information's already given in the question. Based on the information's the answer to the question can be easily deduced.
Distance traveled by the train = 225 km
Time taken to travel the distance of 225 km = 2.5 hours
Then
Average speed = Distance traveled/Time taken
                          = 225/2.5 km/hour
                          = 90 km/hour
So the average speed of the train is 90 kilometers per hour. The procedure for doing this kind of problem is described and it is the simplest way of solving such problems. I hope you have understood the process and got the answer you were looking for.
You might be interested in
Each bat can produce different frequencies of ultrasound. Explain why this is useful if there are many bats hunting together.
Crazy boy [7]

Answer: Although low frequency sound travels further than high-frequency sound, calls at higher frequencies give the bats more detailed information--such as size, range, position, speed and direction of a prey's flight. Thus, these sounds are used more often.

Explanation:

6 0
3 years ago
Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. Half-way between the two plates th
fgiga [73]

Answer:

Explanation:

Let the potential difference between the plate is V . Then in the first case

Electric field E between plate

E₁ = V / d

where d is separation between plate

When the plate separation becomes d / 2

Electric field E between plate

E₂ = V / d /2

= 2 V / d =2E₁

Or twice the earlier field

5 0
3 years ago
What horizontal force is required to drag a 15.8 kg block a long a horizontal surface with a coefficient of friction of 0.3, at
nirvana33 [79]

Answer:

Explanation:your mom!

8 0
3 years ago
the red arrow shows the direction that wind from the south pole would travel if earth were not spinning. the wind's destination
MissTica

Answer: It should be A or the very left red circle that you can click on

Explanation: Because when the wind is moving downward and the earth is spinning the spot the wind ends up will never be directly down from where it was to begin with

6 0
3 years ago
The animation shows a ball which has been kicked upward at an angle. Run the animation to watch the motion of the ball. Click in
sergejj [24]

Answer:

The acceleration of the ball is  a_y =  - 0.3672 \ m/s^2

Explanation:

From the question we are told that

       The maximum height the ball reachs is H_{max} =  42.24 \ m

       The horizontal component of the initial velocity of the ball is v_{ix} = 5.57 \ m/s

       The vertical component of the initial velocity of the ball is v_{iy} = = 16.18 m/s

The vertically motion of the ball can be mathematically represented as

       v_{fy}^2  =  v_{iy} ^2 + 2 a_{y} H_{max}

Here the final velocity at the maximum height is zero so v_{fy} = 0 \ m/s

Making the acceleration a_y the subject we have

        a_y =  \frac{v_{iy} ^2}{2H_{max}}

substituting values

      a_y =  - \frac{5.57^2}{2* 42.24}

      a_y =  - 0.3672 \ m/s^2

The negative sign shows that the direction of the acceleration is in the negative y-axis

6 0
3 years ago
Other questions:
  • Your code returns a number of 99.123456789 +0.00455679 for your calculation. How should you report it in your lab write-up?
    8·1 answer
  • What is the average intensity of the wave after it passes through polarizer b?
    15·1 answer
  • Which electromagnetic wave has the lowest frequencies (less than 3..*.10 © hertz)?
    5·1 answer
  • If the skater coasts only around 65 degrees of the circle, find the magnitude of his displacement vector.
    15·1 answer
  • Answer quick please!!
    14·1 answer
  • Help and show work thanks
    5·1 answer
  • NO LINKS!!!!!! Help its urgent, PLEASE HELP!!!!!!!!!!!!!!!!
    14·1 answer
  • A space shuttle travels around the Earth at a constant speed of 28000 kilometers per hour. If it takes 90 minutes to complete on
    8·1 answer
  • 3. What current is drawn by a 90 W light bulb on a 110 V household circuit?<br> Please answer!!!
    11·1 answer
  • Q3. You throw a ball into the air, it reaches a certain height and then comes back to you.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!