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Monthly archives for July, 2010
Bestsellers in Pedestal Fans week 30
Bestsellers in Pedestal Fans
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Oscillating Table

Physics Help Please! *********Challenge of the day***********?
A 200g ball attached to a spring with spring constant
2.70N/m oscillates horizontally on a frictionless table. Its velocity is 22.0cm/s when x= -5.00cm.
A) What is the amplitude of oscillation? A= ???cm
B) What is the speed of the ball when x= 3.00cm? v= ???cm/s
Loosing my last nerve on this problem, please help!!!!
We need to assume that the equilibrium position is x=0
Then x(t) = A sin (omega t)
x'(t) = A omega cos (omega t)
The frequency of a mass on a spring is:
omega = sqrt (k/m)
sin(omega t) = x(t) / A
cos (omega t) = sqrt (1 - sin(omega t) ^2)
= sqrt (1 - (x(t) / A)^2 )
= x'(t) / A omega
A^2 - x(t)^2 = x'(t)^2 / omega^2
A = sqrt (m x'(t)^2 / k + x(t)^2)
They give you the mass, spring constant, velocity, and position. Plugnchug.
To get B), solve the equation above for x'(t) in terms of A (which is now known) and x(t).
x'(t) = omega^2 (A^2 - x(t)^2)
= k (A^2 - x(t)^2) / m
1930's 12" GE Table Fan.
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Living Accents Retro Table Fan Oscillating 12 in. 3 Speed Chrome FT30-U2B-CH $58.72 |
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Old Westinghouse Oscillating Table Fan $50.00 |
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Vintage working Singer oscillating table fan $16.00 |
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Emerson Junior Oscillating Art Deco Table Fan Model 2660-M Exc. Works $25.00 |
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Vintage Wooden Dollhouse Oscillating Table Fan Heater Furniture Accessories Wood $14.99 |
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12v 8" OSCILLATING TABLE TOP FAN BOAT MARINE CABIN*HC1 $19.99 |
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Fanimation Fitzgerald Oscillating Table or Wall Fan in Oil-Rubbed Bronze $269.99 |
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Holmes HASF1516 White Metal 16" Convertible Floor/Table Oscillating Fan, 30" to $82.36 |
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Lasko Oscillating Ceramic Tower Heater 65-85 degrees Floor or table. Nice NEW! $42.99 |
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Holmes 2Cool Oscillating Table Fan $36.99 |
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Lasko Oscillating Performance Table Fan $23.99 |
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Lasko Oscillating Table Fan $30.99 |
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Lasko 16-Inch 120V Oscillating Performance Table Fan $34.99 |
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Air King16" 3-Speed Oscillating Table Fan-9106 $31.99 |
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VINTAGE SUPERIOR ELECTRIC METAL OSCILLATING TABLE TOP FAN $49.00 |
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Vintage Tozai 16" 3 Speed Oscillating Table Fan $24.99 |
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OPTIMUS FAN 12 INCH OSCILLATING TABLE F1212S $49.95 |
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Optimus F-1210 12" Oscillating 3 Speed Table Fan White AS IS BROKEN $12.99 |
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Holmes HAOF87BLZ-UC Lil' Blizzard 8in Two-Speed Oscillating Personal Table Fan $54.99 |
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Holmes HAOF90-UC Blizzard 8in Three-Speed Oscillating Table/Wall Fan $69.99 |
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Honeywell HT-900C Tabletop Air-Circulator Fan, Black $14.77 Honeywell HT-900 Turbo Table Air Circulator Fan HT-900 Fans... |
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Lasko 4000 Air Stik Ultra-Slim Oscillating Fan $24.00 Lasko Products Air Stick Fan 4000 Fans... |
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Lasko 16-Inch Oscillating Pedestal Fan, Black $19.99 Lasko Products Oscillating Stand Fan 2521 Fans... |
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Exclusive 16 Oscillating Table Fan By Lasko Products $44.82 At Lasko Products they are committed to provide the consumer with the highest and best quality when it comes to products like this Exclusive 16" Oscillating Table Fan By Lasko Products.16" Oscillating Table Fan, 3 speed, white By selecting Lasko Products 16" Oscillating Table Fan - we know you chose right, because at Lasko Products they are dedicated to meet consumers' satisfaction.... |
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Kaz Inc Honeywell HT-904 Desk Fan 228.60 Mm Diameter Removable Grill Adjustable Tilt Head $26.53 ... |
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Prime Products 06-0810 12 V Table Fan $42.31 Prime Products 12V, 8" Table Fan... send a cool breeze through your RV! Playing cards or gobbling up lunch in stifling heat is NO fun! This Table Fan will help keep you comfortable and cool! You get 90 oscillation, or fixed operation with the flip of a switch. Also has adjustable up-and-down tilting for exact positioning. Chrome fan guard keeps curious fingers away. Comes complete with extension c... |
Bestsellers in Pedestal Fans week 30
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