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
Alona [7]
3 years ago
10

(ii) Describe how the acceleration of the train at time t = 100 s differs from the acceleration

Physics
1 answer:
quester [9]3 years ago
7 0

Explanation:

Acceleration is the rate of change of velocity with time. When acceleration increases a body moves a faster velocity.

  • In the graph acceleration at time t= 100s is rapidly increasing.
  • At t = 20s, the acceleration of the body is getting started up.

A vehicle at time 100s will have a faster velocity compared to one at t = 20s

You might be interested in
What does a Lewis structure diagram represent?
densk [106]

Answer:

correct me if i'm wrong nut i thinks its a The atomic symbol of an element surrounded by valence electrons

Explanation:

5 0
3 years ago
Read 2 more answers
A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is
ratelena [41]

Answer:

a = 1.3 m/s2; fn = 63.1 n :)

8 0
3 years ago
When a positive charge moves in the direction of the electric field, what happens to the electrical potential energy associated
VladimirAG [237]

Answer:

B it decreases

Explanation:

the movement of a positive test charge in the direction of an electric field would be like a mass falling downward within Earth's gravitational field. Both movements would be like going with nature and would occur without the need of work by an external force. This motion would result in the loss of potential energy

6 0
3 years ago
This speed is measured with respect to the space station the spacecraft was originally launched from. In interstellar space the
valentinak56 [21]

Answer:

15193.62 m/s

Explanation:

t = Time taken = 6.5 hours

u = Initial velocity = 0 (Assumed)

m = Mass of rocket = 1380 kg

F = Thrust force = 896 N

v = Final velocity

a = Acceleration of the rocket

Force

F=ma\\\Rightarrow a=\frac{F}{m}\\\Rightarrow a=\frac{896}{1380}\\\Rightarrow a=0.6493\ m/s^2

Equation of motion

v=u+at\\\Rightarrow v=0+0.6493\times 6.5\times 60\times 60\\\Rightarrow v=15193.62\ m/s

The velocity of the rocket after 6.5 hours of thrust is 15193.62 m/s

5 0
3 years ago
Which region of the early universe was most likely to become a galaxy?
kramer

Answer:

This is likely possible for a region whose matter density is higher than the normal average.

Explanation:

A galaxy is a collection of lumps in space which are clumped together and interact with each other. There are a lot of speculations on how galaxies were birthed. some believe its formed by a collection of massive gas, dust which eventually collapsed under their own gravitational pull. others says its formed by the combination of large lumps of matter which accumulated forming thee galaxies. The possibility of a galaxy forming is dependent on how massive the matter in the region of the universe is.

3 0
3 years ago
Other questions:
  • If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. Wha
    11·1 answer
  • Based on the image below, what would an observer on the nighttime side of Earth observe?
    9·2 answers
  • Which statement about the physical change of liquid water boiling into steam is true?
    13·2 answers
  • An airplane flies 1760 km in 2 hours 45 minutes. What is its average speed in kilometers per hour?
    5·1 answer
  • PLEASE HELP TIME SENSITIVE:)
    10·2 answers
  • What is the difference between an energy pyramid and a biomass pyramid?
    8·1 answer
  • A motorcycle of mass 100 kilograms travels around a flat, circular track of radius 10 meters with a constant speed of 20 meters
    9·2 answers
  • Suppose that a car weighing 4000 pounds is supported by four shock absorbers Each shock absorber has a spring constant of 6500 l
    12·1 answer
  • An astronomer discovers a new galaxy using a telescope. The astronomer wants to investigate how the galaxy is moving relative to
    15·1 answer
  • An 80 N bowling ball has an apparent weight of 60 N when completely submerged in water. What is the average density of the bowli
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!