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
Nesterboy [21]
3 years ago
9

A rotating wheel requires 5.00 s to rotate 28.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 96.0 rad/

s. What is the constant angular acceleration (in rad/s) of the wheel
Physics
1 answer:
torisob [31]3 years ago
6 0

Answer:

The constant angular acceleration of the wheel is 12.16 rad/s²

Explanation:

Given;

initial angular distance, θ = 28

time of the motion, t = 5 s

initial angular velocity is calculated as;

\omega _i = \frac{\theta}{t} = \frac{28}{5}.\frac{rev}{s}  \ \times \ \ \frac{2 \pi \ rad}{1 \ \ rev} = 35.19 \ rad/s

final angular velocity is given as, \omega _f = 96.0 \ rad/s

The constant angular acceleration is calculated as;

\alpha = \frac{\omega _f - \omega _i}{t} \\\\\alpha = \frac{96 - 35.19}{5} \\\\\alpha =  12.16 \ rad/s^2

Therefore, the constant angular acceleration of the wheel is 12.16 rad/s²

You might be interested in
PLEASE HELP WITH ONE QUESTION!
nata0808 [166]
I think it is -3.99 x 102 j
6 0
3 years ago
If a force of 32000N exerted pressure of 160N/m² , find the area on which the force acts.​
Alex17521 [72]

Answer: 200m^2

Explanation:

160N=32000N/x

x*160N=32000

x=200m^2

4 0
1 year ago
50 grams of ice cubes at -15°C are used to chill a water at 30°C with mass mH20 = 200 g. Assume that the water is kept in a foam
Arada [10]

Answer : The final temperature is, 25.0^oC

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of ice = 2.09J/g^oC

c_2 = specific heat of water = 4.18J/g^oC

m_1 = mass of ice = 50 g

m_2 = mass of water = 200 g

T_f = final temperature = ?

T_1 = initial temperature of ice = -15^oC

T_2 = initial temperature of water = 30^oC

Now put all the given values in the above formula, we get:

50g\times 2.09J/g^oC\times (T_f-(-15))^oC=-200g\times 4.184J/g^oC\times (T_f-30)^oC

T_f=25.0^oC

Therefore, the final temperature is, 25.0^oC

5 0
3 years ago
How does beam spreading affect the temperature on earth and the seasons
navik [9.2K]
Get to school and learn boi
8 0
3 years ago
A rocket is being launched straight up. Air resistance is not negligible.
Yanka [14]

Answer:

hope this will help you

have a great day

3 0
2 years ago
Read 2 more answers
Other questions:
  • If it takes 150 n of force to move a box 10 meters, what is the work done on the box?
    13·1 answer
  • Explain the purpose of oxidation numbers?
    8·1 answer
  • Which heat transfer method is used to capture the sun's energy?
    7·1 answer
  • How is circular motion different from variable motion?
    9·1 answer
  • Consider a point 0.5 m above the midpoint of the two charges. As you can verify by removing one of the positive charges, the ele
    10·1 answer
  • 1. Suppose you have a metal bar. Its mass is 57.9g and its volume is 3cm'. What is its<br> density?
    6·1 answer
  • Which statement below BEST explains global warming?
    15·1 answer
  • A gold bar contains 63.0 mol of gold, Au(s). How many atoms of gold are in the bar?
    13·1 answer
  • Fffffrrrrreeeeee points you can have them!
    5·2 answers
  • A wire coil inside a generator has 150 square loops and an area equal to 0.042 m2.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!