What is the kinetic energy of one platter

Reference no: EM13547727

The hard disk in a laptop computer or some MP3 players contains one or more platters (spinning disks), each having an angular speed of typically 10,000 rpm, a radius of 4.0 cm, and a mass of about 50 g.

(a) What is the kinetic energy of one platter?

(b) What is the angular momentum of one platter?

Reference no: EM13547727

Questions Cloud

Setup cost overtime setup cost : Setup Cost Overtime Setup Cost

Identify the reconciling items : An addition to the cash balance according to the bank statement - Identify the reconciling items

Network diagram has an optimistic time estimate : Activity 4-5 in a network diagram has an optimistic time estimate of five days, a most likely time estimate of seven days, and a pessimistic time estimate of 10 days. Its expected time (in days) is approximately:

Explain the men''s world record for swimming : The men's world record for swimming 1500.0m in a long course pool( as of 2007 is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.550miles. (1 mi =1609m)

What is the kinetic energy of one platter : The hard disk in a laptop computer or some MP3 players contains one or more platters (spinning disks), What is the kinetic energy of one platter

Calculate the velocity of the arrow : An 18.0g arrow is fired into a 3.00kg pumpkin suspended on a string. Calculate the velocity of the arrow just before it enters the pumpkin

Explain for a material to float on the surface of water : For a material to float on the surface of water, the material must have a density less than that of water (1.0 g/mL) and must not react with the water or dissolve in it. A spherical ball has a radius of 0.50 cm and weighs 2.0 g.

Determine the impact on income in year : Determine the amount at which the inventory should be reported on December 31 Year 1 balance sheet using the following information: Historical cost

What revenues are projected for march : Revenue projections for the coming year are $47,500 for January and $50,000 for February. Cash receipts of $50,600 are expected in March. What revenues are projected for March?

User Account

All Pages