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 caused the slope to change around 1905 and 1906?
sesenic [268]
Hydro then electric or solar power
8 0
3 years ago
Read 2 more answers
The​ four-firm concentration ratio for newstands is 17 and for electric lamp makers it is 89. The HHI for newstands is 105 and f
TEA [102]

Answer:

is; is not

Explanation:

The​ four-firm concentration ratio for newstands is 17 and for electric lamp makers it is 89. The HHI for newstands is 105 and for electric lamp makers it is 2 comma 850. The newstand market​ is an example of monopolistic competition. The electric lamp market​ is not an example of monopolistic competition

4 0
3 years ago
The suns energy reaches the sun by<br> Conduction<br> Convection<br> Radiation <br> Fusion
amid [387]

Answer:

Radiation

Explanation:

The sun energy reaches us by Radiation.

8 0
3 years ago
Read 2 more answers
A basketball player drops a 0.4-kg basketball vertically so that it is traveling at 5.7 m/s when it reaches the floor. The ball
Alik [6]

Answer:

(a) p = 3.4 kg-m/s (b) 37.78 N.

Explanation:

Mass of a basketball, m = 0.4 kg

Initial velocity of the ball, u = -5.7 m/s (as it comes down so it is negative)

It rebounds upward at a speed of 2.8 m/s  (as it rebounds so positive)

(a) Change in momentum = final momentum - initial momentum

p = m(v-u)

p = 0.4 (2.8-(-5.7))

p = 3.4 kg-m/s

(b) Impulse = change in momentum

Ft = 3.4

We have, t = 0.09 s

F=\dfrac{3.4}{0.09}\\\\F=37.78\ N

Hence, this is the required solution.

4 0
3 years ago
Which of the following measure is more accurate? 500.00kg, 0.0005kg,6.00kg​
gavmur [86]

Answer: 500.00kg

Explanation:

3 0
3 years ago
Other questions:
  • Which causes a rainbow in the sky?
    10·1 answer
  • In the analogy for how a wave travels along a line of dominoes standing on end, each domino represents _______.
    12·2 answers
  • Constructive interference occurs when the crests of one wave overlap the crests of another wave. What is the result of construct
    5·2 answers
  • : A small block with mass 0.130 kg is attached to a string passing through a hole in a frictionless, horizontal surface. The blo
    7·1 answer
  • Luke stands on the edge of a roof throws a ball downward. It strikes the ground with 100J of kinetic energy. Luke now throws ano
    13·1 answer
  • an average net force of 31.6 N is used to accelerate a 15.0 kg object uniformly from rest to 10.0 m/s leftward. What is the chan
    7·1 answer
  • How many significant figures does each of the following numbers have?
    8·1 answer
  • 7. Identify the substance if a 5g sample is found to have a volume of 2.5ml.
    5·1 answer
  • A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frog jumps as long a
    9·1 answer
  • True or false? Thanks,
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!