Question

5) While spinning down from 500 rpm to rest, a flywheel does 3.9 kj of work....

5) While spinning down from 500 rpm to rest, a flywheel does 3.9 kj of work. This flywheel is in the shape of a solid disk of radius 1.2 m. What is the mass of this flywheel?

A) 5.2 Kg

B) 4.6 kg

C) 3.4 Kg

D) 4.0 Kg

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

In this question we have to find the mass of the given flywheel.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
While spinning down from 300.0 rpm to rest, a solid uniform flywheel does 4.9 kJ of...
While spinning down from 300.0 rpm to rest, a solid uniform flywheel does 4.9 kJ of work. If the radius of the disk is 1.0m, what is its mass? options: 19.9 kg 125 kg 45.6 kg 11.0 kg
solid disk is spinning down from 220 rpm to rest. during this deceleration it does 2.5...
solid disk is spinning down from 220 rpm to rest. during this deceleration it does 2.5 kJ of work. What is its mass, it the radius of the disk is 0.8 m? a. 16.2 kg b. 22.6 kg c. 29.5 kg d. 8.25 kg e. 4 kg
Part a. Starting from rest, a 14 kg box slides down a frictionless incline that is...
Part a. Starting from rest, a 14 kg box slides down a frictionless incline that is 7 meters tall. What is the velocity of the box at the bottom of the incline? Part b. A thin hoop of mass 14 kg and radius 1.2 m rolls down an incline that is 7 meters tall. What is the velocity of the thin hoop at the bottom of the incline? Part c. A solid disk of mass 14 kg and radius 1.2...
A uniform solid disk of mass 3.4 kg and diameter 31 cm starts from rest and...
A uniform solid disk of mass 3.4 kg and diameter 31 cm starts from rest and rolls without slipping down a 28 degree incline that is 7.75 m long.  g = 9.81 m/s^2 . (a) Calculate the linear speed of the center of the disk when it reaches the bottom of the incline. b) Determine the angular speed of the disk about its center at the bottom of the incline. c) Through what angle (in radians) does this disk turn as...
3. A flywheel comprises a uniform circular disk with a mass of 112.0 kg and a...
3. A flywheel comprises a uniform circular disk with a mass of 112.0 kg and a radius of 1.3 m. It rotates with an angular velocity of 1213 rev/min. A constant tangential force is applied at a radial distance of 0.8 m. What is the initial kinetic energy of the wheel? 4. If the wheel is brought to rest in 111.0 s, what is the tangential force? 5. How many revolutions does the flywheel make while it is stopping in...
A uniform solid disk of mass 2.20 kg and diameter 50.0 cm starts from rest and...
A uniform solid disk of mass 2.20 kg and diameter 50.0 cm starts from rest and rolls without slipping down a 30.0 ? incline that is 5.25 m long. g = 9.81 m/s2 . (a) Calculate the linear speed of the center of the disk when it reaches the bottom of the incline. (b) Determine the angular speed of the disk about its center at the bottom of the incline. (c) Through what angle (in radians) does this disk turn...
A uniform solid disk of mass 3.60 kg and diameter 45.0 cm starts from rest and...
A uniform solid disk of mass 3.60 kg and diameter 45.0 cm starts from rest and rolls without slipping down a 39.0 ? incline that is 6.25 m long.  g = 9.81 m/s2 . (a) Calculate the linear speed of the center of the disk when it reaches the bottom of the incline. b) Determine the angular speed of the disk about its center at the bottom of the incline. c) Through what angle (in radians) does this disk turn as...
A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the...
A solid sphere of mass 4.0 kg and radius 0.12 m starts from rest at the top of a ramp inclined 15 degrees and rolls to the bottom. The upper end of the ramp is 2.0 m higher than the lower end. What is the linear velocity when it reaches the bottom of the ramp? A. 4.7 m/s B. 4.1 m/s C. 3.4 m/s D. 5.3 m/s E. 1.8 m/s
From this week's lab you learned that the change in gravitational potential energy of a falling...
From this week's lab you learned that the change in gravitational potential energy of a falling body can be captured and stored as a rotational kinetic energy of a spinning disk. This gave you the idea of a regenerative driver for an elevator in a tall building. When an elevator goes down the corresponding change in the gravitational potential energy of the elevator is transformed into the rotational kinetic energy of a solid disk-shape flywheel which can be extracted and...
3) A Solid Ball, of mass M and radius R rolls from rest down a table-top...
3) A Solid Ball, of mass M and radius R rolls from rest down a table-top ramp of height H and then rolls (horizontally) across a table until it gets to the edge and rolls off the edge and drops a distance h to the floor. (a) At what horizontal distance D (from the table edge) does the ball hit the floor? (b) Rank the following objects from least D to greatest D : Solid Ball, Hollow Sphere, Solid Cylinder,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT