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Oscillation find frequency of small oscillation of a thin uniform vertical rod of mass M and length L when its upper end is hinged and lower end attached to a spring of stiffness K on either side of the rod,the free end of each spring connected to wall.

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Re: oscillation

Does this help, it may be a start.
A Cos[w t - è[t]] + B è''[t]==0, where A and B are arbitrary constants?

If you expand the Cosine term, you get A Cos[w t] Cos[è[t]] + A Sin[w t] Sin[è[t]] +B è''[t] ==0, which can be approximated as:

B è''[t] + A Sin[w t] è[t]== -A Cos[w t]

So is the frequency of small oscillations just Sqrt[(A Sin[w t])/B]?

Posted on Nov 07, 2007

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If two balls of different masses are thrown vertically upwards with same initial speed then which one rises to a greater height?

This the problem of a projectile motion.
Assume the positive direction of the vertical axis is upward.
Let y_0 be the initial height, which we set=0.
Let v_0 be the initial velocity, a the acceleration, t the time, y the position at instant t, v the vertical velocity.
At what time is the highest point reached?
At the culmination point (highest point) the speed passes through the value 0. This happens at the time t_c given by
v_0-g*t_c=0 or t_c=v_0/g
Substitute this value in the equation for the position
this gives y_c=(1/2*g)*(v_0)^2
As you can see the mass does not appear anywhere in this problem. Both masses will reach the same height.

Nov 10, 2013 | Microsoft Windows XP Professional


How to Format an HP Recovery Drive

How to Format an HP Recovery DriveThe HP Recovery Drive is a partition HP puts on its hard drives for use in case the primary partition becomes corrupt or unusable. The recovery partition contains system files and the ability to boot and repair, format and reinstall the operating system if needed. For those who prefer recovery disks or who don't feel the need for the insurance of the HP Recovery drive, it can be formatted by following the steps below.

Instructions1 Open Disk Management by Right Clicking "My Computer" and selecting "Manage."
2 Click on "Storage" and "Disk Management."
3 Find the Recovery Drive partition. There are usually two partitions: the "C: partition" and the "HP_RECOVERY D: partition."

4 Right-click on "HP_RECOVERY D:" and select "Format."
5 Choose the File system and Allocation Unit Size and click "OK." The HP Recovery Drive partition will format and be available for your specified use

Tips & Warnings
Be very careful to not format the C: drive by accident.

on Dec 15, 2011 | HP Operating Systems

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The following frequency distribution analyzes the scores on a math test. find the indicated class midpoint or boundaries. 40-55 2 60-75 4 76-82 6 83-94 15 95-99 5

Midpoints ( x + y)/2 = x47.567.57988.597

Boundaries for lower class -0.5 and +.0.5 for upper.39.5 - 55.559.5 - 75.575.5 - 82.582.5 - 94.594.5 - 99.5
I just don't get how the number of students factor in? It's still an average.

Oct 11, 2012 | Operating Systems

1 Answer

Find the conversion of units:length,mass and volume I hope those help.

Jul 04, 2011 | Operating Systems

1 Answer

8 cm to gm

If you are referring to the metric units system, cm(centmeter) is the units used in measurement of length and gm(gram) is the unit measurement for mass/weight. You cannot convert cm to gm because they are different entities & properties.

Hope it helps.

Jul 04, 2011 | Operating Systems

1 Answer

OK so when i turn on my computer it says that the NLDTR is missing before i get to my desktop. right from the get go it will be on the loading black screen and it will say "NLDTR IS MISSING"...

first check the boot drives to make sure that the computer is not trying to boot from a different drive to the one that contains Windows.
check that there are no CDs or DVDs 3 1/2 inch floppy discs
in the CD/DVD,3.1/2 floppy drives ,and no removable usb drives plugged in to the usb ports
Test all leads that attach to your hard drive including electrical extensions,IDE,SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty if this does not fix the problem it might be a registry problem
Close all open programs

Click on Start, Run, and type regedit and press Enter
Click on the plus signs (+) next to the following folders







This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

Upper Filters

Lower Filters

Upper Filters.bak

Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

After deleting the keys, close the registry editor
Reboot your computer
Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they are probably faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error hope this helps

Feb 20, 2011 | Microsoft Windows XP Professional With...

1 Answer

It's rejecting my password

Passwords are case sensitive, make sure that you do not have caps lock turned on if your password is all lower case, if there are any upper case letters be sure to make them upper case (Eg; If the password is "Password" you need to capitalize the P and make the rest lower case)

Feb 03, 2011 | Operating Systems

2 Answers

Changing registry settings

access registry editor by typing regedit in run , then Press Ctrl+F and then find menu will come, there enter the upper filters and lower filters. Now u can get the results with the value having lower or upper filters.

Oct 25, 2009 | Microsoft Windows XP Professional

1 Answer

A rectangle with sides parallel to the x-y axes and its left-lower corner at (0, 0) is being painted. The rectangle may be thought of as a flat-screen display with almost infinite resolution; initially the...

It would be "cheating" for anybody to do your "homework" from your computer-mathematics class, unless you submit your answer, saying that an EXPERT on FIXYA did all the work on your behalf.

Apr 14, 2009 | Microsoft Windows XP Professional With...

1 Answer

VBA Macro

Nice try! Find an upper-class student to give you one-on-one tutoring with your homework assignment.

Aug 26, 2008 | Operating Systems

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