Question

The optical disk drive in your device can spin a disk at up to 10,000 rpm....

The optical disk drive in your device can spin a disk at up to 10,000 rpm. If a disk of mass 17 g and radius 12.0 cm is spun from rest to a speed of 7730 rpm over 0.0.550 seconds, what is the magnitude of the average torque (in Nm) on the disk while it is spun up?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
An optical disk drive in your computer can spin a disk at up to 10,000 rpm....
An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 8410 rpm while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? If the disk is 12.0 cm in diameter, what is the magnitude of the tangential linear acceleration of a point 1/3 of the way out from the...
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about...
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 470.2 rad/s while it is being read, and then is allowed to come to rest over 0.167 seconds , what is the magnitude of the average angular acceleration of the disk? average angular acceleration: rads2 If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/5...
A wheel of radius 20 cm is initially rotating at 12 rpm. It then speeds up...
A wheel of radius 20 cm is initially rotating at 12 rpm. It then speeds up at a constant rate, reaching a speed of 35 rpm after 3.1 seconds. a)What is the angular acceleration of the disk? b)How much does it rotate (in radians) while it is accelerating from 12 to 35 rpm? c)What is total acceleration (in m/s 2 ) of a point on the edge of the disk at the moment it has just started accelerating?
6. The CD-ROM drive in a computer accelerates a disk from rest to its full speed...
6. The CD-ROM drive in a computer accelerates a disk from rest to its full speed of 20000 revolutions per minute; it does so uniformly over 5 seconds. The disk is 6 cm in radius. (a) Is it correct to write ? = 4000rev · min?1 · s?1? Explain. (b) What is the maximum angular velocity in our conventional units of radians per second? (c) What is its angular acceleration? (d) How many times does it spin during this interval?...
A heavy grindstone (mass,50 kg, radius,0.4 m) is spun up with constant torque from rest to...
A heavy grindstone (mass,50 kg, radius,0.4 m) is spun up with constant torque from rest to a final angular velocity of 1 rev/sec. This is accomplished in 15 seconds. a)what is the rotational inertia of the grindstone? b)what is the final kinetic energy of the grindstone? c)what was the angular acceleration while spinning up? d)how much torque was required to spin up the grindstone? e)how much work did it take to spin up the grindstone? f)what power was required to...
The CD-ROM drive in a computer accelerates a disk from rest to its full speed of...
The CD-ROM drive in a computer accelerates a disk from rest to its full speed of 20000 revolutions per minute; it does so uniformly over 5 seconds. The disk is 6 cm in radius. (e) After four seconds, what is the tangential velocity of a point along the edge of the disk? (f) After four seconds, what is the angular velocity of a point along the edge of the disk? (g) After four seconds, what is the tangential acceleration of...
1. Starting from rest, a CD takes 3.0 s to reach its operating angular velocity of...
1. Starting from rest, a CD takes 3.0 s to reach its operating angular velocity of 450 rpm. The mass of a CD is 17 g and its diameter is 12 cm. You may assume that the small opening at the center of the CD is unimportant when calculating the rotational inertia. Assume that the angular acceleration is constant. a. What is the rotational kinetic energy of the CD after it has completely spun up? b. How high off the...
A drill is used to spin a wheel that begins from rest for two seconds. Then...
A drill is used to spin a wheel that begins from rest for two seconds. Then while the wheel is still spinning, it is placed on the ground at the bottom of a hill. The idea is to find out how far up the hill the wheel will go. The drill exerts a force of 15-Nm, we'll assume that there is NO energy lost due to friction or air resistance. The wheel in question will be treated as a solid...
A disk with mass m = 8.5 kg and radius R = 0.35 m begins at...
A disk with mass m = 8.5 kg and radius R = 0.35 m begins at rest and accelerates uniformly for t = 18.9 s, to a final angular speed of ? = 29 rad/s. a) What is the angular acceleration of the disk? b) What is the angular displacement over the 18.9 s? c) What is the moment of inertia of the disk? d) What is the change in rotational energy of the disk? e) What is the tangential...
A disk with mass m = 9.5 kg and radius R = 0.3 m begins at...
A disk with mass m = 9.5 kg and radius R = 0.3 m begins at rest and accelerates uniformly for t = 18 s, to a final angular speed of ω = 28 rad/s. A)What is the angular acceleration of the disk? B)What is the angular displacement over the 18 s? C)What is the moment of inertia of the disk? D)What is the change in rotational energy of the disk? E)What is the tangential component of the acceleration of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT