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
FinnZ [79.3K]
2 years ago
8

A man stands still on a moving walkway that is going the speed of 0.4 m a second to the east what is the velocity of the man acc

ording to a stationary observer
Physics
1 answer:
MaRussiya [10]2 years ago
5 0

Answer:

gtfcddcghjhgtthghyy

Explanation:

You might be interested in
Maria drove to the store and then to work.
natali 33 [55]

Answer: C - 60km !!!

Explanation:

8 0
2 years ago
PHYSICS PLEASE HELP!
Salsk061 [2.6K]

Answer:

It would take two half-lives which would be 130days

The substance has a half-life of 30 minutes. There has been two cycles that have occurred.

idk the last one

Explanation:

3 0
3 years ago
A train accelerates at -1.5 m/s2 for 10 seconds. If the train had an initial
Gnom [1K]

Answer:

17 m/s

Explanation:

Using formula a = (v-u) /t

acceleration a =  -1.5 m/s2

final velocity v = unknown

initial velocity u = 32 m/s

time t = 10s

-1.5 = (v-32)/10

-15 = v - 32

-15 + 32 = v

v = 17 m/s

7 0
3 years ago
The reason for this correlation is not fully understood, but most astronomers take it to mean that the evolution of normal and a
ICE Princess25 [194]

Answer: The hierarchical formation model suggests that galaxies may have been formed  by subsequent mergers of smaller galaxies and that today each galaxy houses at least  a supermassive black hole.

Explanation: During a fusion of galaxies, the stars that composes it suffer the tidal force, intensifying your action as the galaxies approaching. When two galaxies merges themselves, the astronomers believes that they loss a huge part of their mass, forming the supremassive black hole, that stays in the middle of the galaxie.

The supermassive black holes are originated from the evolution of high mass stars. They were formed by huge clouds of gas or clusters of millions of stars that collapsed on their own gravity when the universe was still much younger and denser.

6 0
3 years ago
A small space probe of mass 170 kg is launched from a spacecraft near Mars. It travels toward the surface of Mars, where it will
alukav5142 [94]

Answer:

The change  in momentum is  \Delta p =   kg \cdot m/s      

Explanation:

From the question we are told that  

       The mass of the probe is  m = 170 kg

       The location of the prob at time t = 22.9 s is  A  =

       The  momentum at time  t = 22.9 s is  p = < 51000, -7000, 0> kg m/s

        The net force on the probe is  F =  N

Generally the change in momentum is mathematically represented as

              \Delta p = F * \Delta t

The initial time is   22.6 s

 The final time  is  22.9 s

             Substituting values  

           \Delta p =  * (22.9 - 22.6)

            \Delta p =  * (0.3)  

              \Delta p =   kg \cdot m/s        

 

6 0
3 years ago
Other questions:
  • A student pulls a box across a horizontal floor at a constant speed of 4.0 meters per second by exerting a constant horizontal f
    10·2 answers
  • Technician A says that all components in the high voltage battery box are completely insulated from the rest of the vehicle for
    9·1 answer
  • If the end points are -8 and 12 what is the midpoint
    10·1 answer
  • Two tuning forks are played at the same time. One has a frequency of 176 Hz and the other is 178 Hz. How many beats per second a
    7·1 answer
  • Why does a siren have a lower pitch as it moves away from you? A The period of the sound wave is decreased B The amplitude of th
    15·2 answers
  • Is nickel coin magnetic?
    12·2 answers
  • Since velocity describes both speed and direction you can call it
    9·1 answer
  • If white light shines on an object and the red, orange, green, blue and purple light is absorbed. What color does your eye see?
    12·2 answers
  • Considerando la luz como una onda, si un rayo de luz láser pasa del aire a un vidrio transparente, ¿Cuál de las siguientes carac
    9·1 answer
  • Can someone plz check if what I typed is good :)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!