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
lara31 [8.8K]
3 years ago
6

A mobile travels 98 km in 2h calculate: a) your speed b) how many kilometers will you travel in 3h with the same speed?

Physics
1 answer:
ra1l [238]3 years ago
6 0
If you are traveling 98 km in 2h you are traveling 49 km/h (98/2=49).
To calculate how many kilometers you will travel in 3 hours, multiply 49 (the number of kilometers) times 3 (the number of hours) and you get 147 kilometers.

Hope that helps.
You might be interested in
Can a small child play with a fat child on a see saw? explain how?
yuradex [85]
Closer u get 2 the center the more balanced out your weight will b
6 0
3 years ago
Read 2 more answers
Two metal balls are dropped from the top of a two-story building at the same time. One ball is twice as heavy as the other ball.
Kipish [7]

Answer:

that will be tureHéroes y bandidos: iconos populares y figuraciones de la nación ... más o menos convencional de un Superman o, mejor, un Batman: un ... —o, a veces, mediante su imposibilidad— se obliga al lector a ... creerse que un hombre de aspecto tan común fuera el poderoso ... vas a sentir la furia de un león.

8 0
3 years ago
The graph that BEST shows the relationship between colour and wavelength is​
Lady bird [3.3K]
Answer is A I hope it helps
6 0
3 years ago
8. What is the frequency heard by a person driving at 18 m/s toward a blowing factory whistle (600 Hz) if
Angelina_Jolie [31]

Answer:

631.7 Hz

Explanation:

The Doppler effect is a phenomenon that occurs when there is relative motion between an observer and a source of a wave. When this occurs, the is a change in the apparent frequency of the wave, as observed by the observer.

In particular, the new apparent frequency can be calculated as:

f'=\frac{v\pm v_o}{v\pm v_s}f

where

f is the real frequency

f' is the apparent frequency

v is the speed of the wave

v_o is the velocity of the observer (positive if the observer is moving towards the source, negative if moving away)

v_s is the velocity of the source (negative if the source is moving towards the observer, positive if moving away)

In this problem:

v = 340.6 m/s is the speed of the sound wave

f = 600 Hz is the real frequency of the sound

v_o = +18 m/s is the velocity of the person

v_s=0 is the velocity of the source

Substituting, we find:

f'=\frac{340.6+18}{340.6}(600)=631.7 Hz

7 0
3 years ago
calculate the acceleration of gravity on the surface of kepler-62e Kepler-62e is an exoplanet that orbits within the habitable z
AnnyKZ [126]

The acceleration of gravity is proportional to the planet's mass, and inversely proportional to the square of the planet's radius.

So on this particular planet, the acceleration of gravity will be

(Earth gravity) x ( 3.57 / 1.61²)

That's  (9.81 m/s²) x (1.377)  =  <em>13.51 m/s²</em>

4 0
3 years ago
Other questions:
  • Two radio antennas are 120 m apart on a north-south line, and they radiate in phase at a frequency of 3.4 MHz. All radio measure
    6·1 answer
  • Physics help please
    10·1 answer
  • A train moving at a constant speed of 50.0 km/h moves east for 45.0 min, then in a direction 45.0° east of due north for 10.0 mi
    5·1 answer
  • An ornament of mass 42.0 g is attached to a vertical ideal spring with a force constant (spring constant) of 33.9 N/m. The ornam
    7·1 answer
  • How are density and pressure related related to each other?
    13·1 answer
  • Hat do the ancient civilizations of China, Egypt, and Greece have in common with regard to sports?
    5·1 answer
  • why is a train more difficult to stop then a rolling ball even if they are traveling at the same speed? URGENT
    11·1 answer
  • A chair of weight 125 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 3
    15·1 answer
  • What Science is/is not and How Physics and Chemistry are Connected
    7·1 answer
  • If the electric potential in a region is given by v(x)=7/x2 the x component of the electric field in that region is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!