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Welcome to this blog, peace be with You. This blog contains mathematics and physics matters. As the addition service to our tuition programs, we hope this blog can support the matter given in the class and enrich them. Many subject will be uploaded time by time as our progressive effort, and you can download it for free. Some sample problems may be useful for public as their exercises. Thanks for the support, hope this blog can be useful.God Bless You….

Sunday, May 24, 2009

Math X Exercise, Preparing 2nd Semester Test

Final 2nd semester test will come soon. There is no way but preparing yourself as well as you can. Do your best to get your higher mark. Here I give answer to your Math exercise for grade X, taken from last year exam paper in LC.

I hope to publish another exercises for grade X and XI too, wait for the good news. If you have any other exercises and need help, I will help you to solve it. Just give me your paper and I'm glad to publish the answer soon.

All this effort just to help preparing you better for the test. You have to try it first and address for the answer only for a reference of to compare the result. When you cannot solve the problem, you can address this answer, but, you have to do it over and over again until you master it.

Good luck....

Tuesday, May 12, 2009

Tips for Quick Differentials

Suppose we have to find the first derivative of function

By the theorem of differentiation we will calculate

Performing this rule we proceed like this ...


The formula in red is the shorthand formula to find the first derivative of the linear fraction function above.

For a composite function, say


The first derivative is can be found by the shorthand formula



Notice that u here is a function of x.

Here is another function,
The first derivative is given by .....
Have a nice learning ....





Tuesday, May 5, 2009

Wrap A Latte

As a part of the educated society, it is our responsible to protect The Earth from the excessive waste. We have to start thinking about using reusable material in all of our activities. Even just for as a simple thing as coffee sleeve.
Decorative in its style, 100 % reusable material off course, coffee sleeves from Posy Lane is a good example for an attractive Earth friendly products. Many attractive designs can be created from many beautiful pattern offered. Rich in colors and touches, this wrapper thermally insulated your cup.
Classical touch design also available for coffee cup sleeves, there are elizabeth, Black & white swirl, Small Black Paisly, and other fabric designs you can choose.
Express your intelligence by wisely using reusable material to save our Earth. We can make an effort on it just as simple as using a reusable latte wrapper, but don't leave the beauty aspect.

Free Online Tuition Chat

Good news..... Have a problem doing your homework or preparing your test? You can visit this blog and have a chat with me, I will gladly to help you. I am available at 22.00 (Jakarta time zone). For KttEdu students only. For public, you can email your question, I will reply you soon.

Monday, May 4, 2009

Surface Tension On A Bubble

Surface tension comes from liquid's inter molecules forces located at the upper most of the liquid. The molecules of the liquid attract each other with relatively equal magnitude in all direction. The resultant of the forces can be assumed as zero.
But the molecules located at the upper most of the liquid are not attracted upward, since there is no liquid molecules above them. Thus they have a resultant of force downward. This force will give a reaction effect upon an external action force though it is small in magnitude.Greater force will break the "binding" and make the force acting on the surface penetrates the liquid.

The bubble is developed because the existence of the surface tension. The outward force from pressure difference between the inside gas and the environment is in equilibrium with the force developed by surface tension.

surface tension,bubble

The force from surface tension iswhere gamma is the surface tension, r is the radius of the bubble. Notice that the hemisphere has two surface, the inner and the outer ones.
The force caused by pressure difference between the gas inside the bubble and the atmospheric pressure isThe effective area (A) here is the area perpendicular to the force. This hemisphere has the effective area of a circle across it.
Equating the equation (1) and (2) we have

Friday, May 1, 2009

Online Education

Online training for medical assistant is now available at St. Augustine School of Medical Assistants.
The up growing demands for health services in all over the world is a good job opportunity for medical assistants. The complexity of the health problems is increase. The need for smart, skillful and well trained medical assistants is inevitable. This is the time for you to increase your skill in medical treatments to serve the patients better.
This formal online tanning programs are available online 24 hours and 7 days a week, you can visit the classes or trainings whenever you want for your convenience. Typical students completed the programs in 6-8 weeks. Accredited, affordable and accessible certificate is available for you upon completing the program. Without time limits applied, you can finish the program as long as you want. But, just keep in mind, the carrier opportunity can't wait. Visit http://www.medassistant.org/program_details.html for the programs offered by this web based medical assistant school.
Enroll to St. Augustine School of Medical Assistants by registering you, you will get your program user name and password. Use them to access all the classes. You can take online examination when you have finished the class. If you pass the exam, the certificate and transcript will be mailed to you.
The programs fee is much less than the regular one. You can visit http://www.medassistant.org to get information about the special fee offered by the school. Learn more about about the good news in http://medicalassistantschools.blogspot.com.

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