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
Aleks [24]
3 years ago
7

A train accelerates from 23m/s to 190m/s in 54 seconds. What was its acceleration?

Physics
1 answer:
Ierofanga [76]3 years ago
3 0

Answer:

Use the method on the image and solve it.

You might be interested in
In 1913 Niels Bohr formulated a method of calculating the different energy levels of the hydrogen atom.
Svetlanka [38]
They are right the answer is A true
4 0
3 years ago
George walks to a friend's house. He walks 850 meters north before he realizes he walked too far.
anyanavicka [17]

Answer:

<h2>44 m/s</h2>

Explanation:

In this problem we are expected to calculate the velocity of Georges movements.

Given data

Total distance covered by  George= 850+250= 1100 meters

Time taken  by  George to cover the total distance= 25 seconds

We know that velocity is, v= distance/ time

Therefore substituting our data into the expression for velocity we have

v= 1100/ 25= 44 m/s

Hence the velocity in m/s is 44

7 0
2 years ago
Convection currents in air and water occur because _
Diano4ka-milaya [45]

warm fluids are less dense than cold fluids

7 0
3 years ago
Even in the most advanced circuits, we cannot oscillate electrons back and forth at that rate through wires. But we can oscillat
den301095 [7]

Answer:

the oscillations of the electrons must be in the 10⁸ Hz = 100 MHz range

Explanation:

The speed of a wave of radio, television, light, heat, all are manifestations of electromagnetic waves that are oscillations of electric and magnetic fields that support each other, the speed of all these waves is the same and the vacuum is equal to c = 3 108 m / s

All waves have a relationship between the speed of the wave, its frequency and wavelength

          c = λ f

          f = c /λ

for this case lam = 1 m

          f = 3 10⁸/1

          f = 3 10⁸ Hz

the oscillations of the electrons must be in the MHz range

It should be clarified that the speed of light in air is a little lower

          n = c / v

          v = c / n

the refractive index of vacuum is n = 1 and the refractive index of air is n = 1.000002

5 0
2 years ago
We see a full moon by reflected sunlight. How much earlier did the light that enters our eye leave the sun? the earth-moon and e
Tju [1.3M]

The time taken by the light reflected from sun to reach on earth will be 8.4 minutes.

To find the answer, we need to know about the distance travelled by light.

<h3>How to find the time taken by the light reflected from sun to reach on earth?</h3>
  • So, in order to solve this problem, we must first know how far the moon is from Earth and how far the Sun is from the moon.
  • These distances are given as 3.8×10^5 km (Earth-Moon) and 1.5×10^8 km (Sun- Earth).
  • Since the Moon and Sun are on opposite sides of Earth during a full moon, the light's distance traveled equals,

         d=(1.5*10^8km)+2(3.8*10^5km)=1.51*10^8km=1.51*10^{11}m

  • As we know that light travels at a speed of 300,000 km per second. then, the time taken by the light reflected from sun to reach on earth will be,

                      t=\frac{1.51*10^{11}}{3*10^8}=503.33 s\\t=\frac{503.33}{60}=8.4min

Thus, the time it takes for the light from the Sun to reach Earth and be recognized as 8.4 minutes.

Learn more about distance here:

brainly.com/question/11495758

#SPJ4

6 0
1 year ago
Other questions:
  • According to Newton’s Second Law of Motion, an object will accelerate if you apply what kind of force?
    15·1 answer
  • Suppose that a sound has initial intensity β1 measured in decibels. This sound now increases in intensity by a factor f. What is
    10·1 answer
  • A thin hoop is supported in a vertical plane by a nail. What should the radius of the hoop be in order for it to have a period o
    5·1 answer
  • a coin press creates a pressure of 3.20*10^8 Pa on a nickel of radius 0.0106 m. how much force does the press exert on the coin?
    14·1 answer
  • A 40 kg-skier starts at the top of a 12-meter high slope. At the bottom, she is traveling 10 m/s. How much energy does she lose
    13·2 answers
  • A positive point charge q is placed at the center of an uncharged metal sphere insulated from the ground. The outside of the sph
    12·1 answer
  • Is jacob barnes a turd face?
    12·2 answers
  • A device for acclimating military pilots to the high accelerations they must experience consists of a horizontal beam that rotat
    9·1 answer
  • Vectors are arrows that tell us two things about force...WEIGHT and DIRECTION
    13·1 answer
  • A car initially miving at 0.5m/s along a track.the car come to rest after travelling 1m.the car is repeated on the same of track
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!