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
LenKa [72]
3 years ago
13

An escalator is 18.3 m long. If a person stands on the escalator, it takes 47.8 s to ride from the bottom to the top. If a perso

n walks up the moving escalator with a speed of 0.521 m/s relative to the escalator, how long does it take the person to get to the top?
Physics
1 answer:
Novay_Z [31]3 years ago
8 0

Answer:

20.243 s

Explanation:

Because the escalator and person moving in the same direction, relative velocity can be calculated by summing the velocity of the escalator and velocity of the person.  

The speed of escalator can be calculated as,

v_{escalator}=\frac{x}{t}=\frac{18.3}{47.8}=0.383\ m/s

Relative velocity

v_{relative}=v_{escalator}+v_{person}\\\\v_{relative}=0.383+0.521=0.904\ m/s\\

Therefore total time required to take the person to get to the top

t=\frac{x}{v_{relative}}= \frac{18.3}{0.904}=20.243\ s

You might be interested in
How much work can be done in 30 seconds by a 1000-watt microwave oven?
iris [78.8K]
Half of it can be be at 1000 watt microwave oven!!!                                                                                                                                                                                                                                                                                                            I hope it help!!!!!!
7 0
3 years ago
Read 2 more answers
1.Sobre a queda-livre,assinale V para verdadeiro e F para falso
lisov135 [29]

Answer:pelo o que eu sei é ..

V

V

V

F

F

F

Explanation:

8 0
3 years ago
24. Which wave below has the highest amplitude? Why?
GuDViN [60]
4 because it’s is the highest one hope it helps
6 0
2 years ago
Jessica does not like how her BestFriend has been treating her around others. When confronted, the friend says Jessica is being
Eva8 [605]
She is sad and feels left out because they are treating her badly. Hope this helps :)
7 0
3 years ago
To what physical quantity do ampere-hours correspond, and what relationship do ampere-hours have to energy content?
navik [9.2K]

Electric charge

Explanation:

The ampere-hour corresponds to the unit of electric charge.

 Electric charge = electric current x time

    electric current is measured in amperes

     time is measured in hours

The ampere-hour is the current transferring one charge in one hour.

The ampere hour can be used to express the energy require to move a current of 1A in a hour.

The quantity is related to electric charge and the energy in a battery.

Learn more:

Electric circuit brainly.com/question/10421964

#learnwithBrainly

4 0
3 years ago
Other questions:
  • A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at x= - 2.0 cm . A second, parallel wir
    14·1 answer
  • 52. How did people spend Life in the<br>hunting age-​
    15·2 answers
  • A 100-meter sprint is a race using only the straight side of a racetrack. A 400-meter sprint is a race that makes one complete l
    12·2 answers
  • PLZZ HELP WILL MARK BRAINLY The function of the respiratory system is to ___________.
    5·1 answer
  • A Neglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds needs an initial speed of
    5·1 answer
  • A ball is dropped from the top of a tall building. As the ball falls, the upward force of air rsistance becomes equal to the dow
    12·1 answer
  • Does an infrared wave or an x-ray travel faster in the vacuum of space?
    5·2 answers
  • Discuss how a sheet can be made water proof​
    12·1 answer
  • describe the forces acting on a car as it movies along a level highway in still air at a constant speed
    7·1 answer
  • I'm studying the equilibrium of forces so hard that I got confused for a sec. Is the force due to gravity included in summing up
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!