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
Amanda [17]
3 years ago
8

An automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 seconds. (A) Calculate its angular acceleration. (Give your ans

wer in radians per second squared written as rad/s^2)
English
1 answer:
stich3 [128]3 years ago
6 0

Answer:

-138.23 rad/s^2

Explanation:

The initial angular velocity = 4500 rpm

The final angular velocity = 1200 rpm

1 revolution = 2π radians

1 minute = 60 seconds

So,

Initial\ velocity=\frac {4500\times 2\pi}{60}\ radians/sec=471.2389\ radians/sec

Final\ velocity=\frac {1200\times 2\pi}{60}\ radians/sec=125.6637\ radians/sec

Time = 2.5 seconds

Angular acceleration is:

\alpha=\frac {\omega_f-\omega_i}{t}

\alpha=\frac {125.6637-471.2389}{2.5}\ rad/s^2

Angular acceleration =- 138.23 rad/s^2

You might be interested in
What is one theme or central idea of two kinds
shtirl [24]
It was supposed to be A
7 0
3 years ago
What is the Central purpose of the “Black Cat” by Edgar Allen Poe? Why is this purpose important or meaningful?
beks73 [17]

Explanation:

hes trying to shine light on the events that took place in his household. this is meaningful because hes stating the gloomy way the narrator felt.

5 0
3 years ago
A common golfer cannot play in the Masters or British Open with the world’s best-known golfers, nor can the average tennis playe
tekilochka [14]

Answer:

D if you have been to the Masters tournament

Explanation:

6 0
3 years ago
How could competition policy undo the wrong of the past and make South Africa a better place​
SCORPION-xisa [38]

Answer: The competition policy and the wrongs of the past and make South Africa a better place due to the following reasons:

- Part of the new international orthodoxy in economic policy is the competition policy and at the same time was viewed in South Africa as a crucial element of economic transformation.

- This article reviews the experiences of developing countries such as Brazil South Korea and the role of competition policy in the economic development.

- After 1994 in South Africa it then assesses the effect of competition policy the main focus Bheem on the performance of new competition institution which was established in

1994.

- To assess the approach and impact of the institution in the concentrated sector the case of the Steel industry is used that head simultaneously undergoes processes of liberalisation and domestic consolidation.

Explanation:

I hope these help you out

4 0
3 years ago
What happens in the General Prologue of The Canterbury Tales?
kykrilka [37]

Answer:

Hope it helps

Explanation:

The narrator opens the General Prologue with a description of the return of spring. He describes the April rains, the burgeoning flowers and leaves, and the chirping birds. ... The travelers were a diverse group who, like the narrator, were on their way to Canterbury. They happily agreed to let him join them.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What Greek value is being illustrated in this excerpt? "Here is your part: at break of day tomorrow home with you, go mingle wit
    11·2 answers
  • View and Conflict with the self in Short Stories Mastery Tec
    12·1 answer
  • According to science, the fastest speed possible for anything is the speed of light, which is about 186,000 miles per second. Th
    9·1 answer
  • Excerpt from: The Fall of the House of Usher Edgar Allan Poe The room in which I found myself was very large and lofty. The wind
    7·2 answers
  • What does it mean when someone is referred to as "sisyphus"?
    8·1 answer
  • Soon another sound reached his ears, like an unexpected voice in a the faint but unmistakable bleating of sheep. what is the cor
    14·1 answer
  • My family loves to go on vacation. We go for two weeks every summer. You enjoy traveling to new places and spending time togethe
    11·2 answers
  • Can anyone write an essay for the attachment below it is worth 30 points
    7·2 answers
  • Why should the seventh man should forgive himself essay with 6 paragraph?
    5·1 answer
  • The Federal Reserve considers healthy
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!