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Each day readers send in questions and feedback concerning the various lessons in the School for Champions website. A total of 15642 letters have been answered.



List of most recent 15 letters

Title

Subject

Section

Country

1962 cookware needs handles Health USA
 
Questions on electricity Electricity Philippines
 
Studying John F. Kennedy's inaugural speech Speaking India
 
Awesome!!!!!! Thanks Machines USA
 
Work for force at an angle Force Kenya
 
Handles for Treasure Chest Cookware Health USA
 
Thanks for resources Knowledge USA
 
How can I do well in my exams? Grades Ghana
 
University entry test practice Grades Pakistan
 
Deposition and sublimation Matter India
 
Want to be a motivational speaker Speaking USA
 
Very helpful material Thanks Bangladesh
 
Hitting a golf ball Force USA
 
Rocket powered car Gravity USA
 
Could magnetic fields be causing problems? Health USA
 

Next 15 letters


1962 cookware needs handles

Health

December 2, 2016

Question

I have waterless cookware purchased in 1962 by Future Homes. Stainless steel pan needs replacement handle. Any suggestions?

Linda - USA (27521)

Answer

You can check a local repair shop. They may be able to install generic handles. Best wishes for success in getting new handles.

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Questions on electricity

Electricity

December 2, 2016

Question

1.Why do you think it is more difficult to push a magnet into a coil with many loops?

2.What can be done if the coils of a wire in an electric fan motor got burned out? (You may consult an electrician with specialization on electric motors.)

3.How is electric current produced in a power plant that uses steam turbines and generators?

4.How does a portable electric generator used at home during a power failure operate?

5.Is it safe to use portable electric generator at home during a power failure? Why do you say so?

Jesus Ramon Neopolo - Philippines (27522)

Answer

Each coil provides resistance to moving the magnet. See Lorentz Force from Magnetic Field.

If the coils in a motor are burned out, the motor should be replaced.

Also see Generating Electrical Current to help answer your questions.

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Studying John F. Kennedy's inaugural speech

Speaking

December 2, 2016

Question

sir, right now I am studying john f Kennedy's inaugural speech will it be a right method to attain oratory at the advanced level

antro - India (27523)

Answer

You can see the text of John F. Kennedy's Inaugural Speech, as well as to hear an audio of the speech. The audio is a computerized version and not in Kennedy's voice.

Note the his speech has a good introduction and is broken into short paragraphs on each topic. This makes it easy to understand. He also has a good conclusion.

It is a good speech to use in studying and improving your speaking skills.

Best wishes for success in public speaking.

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Awesome!!!!!!

Thanks

November 30, 2016

Question

Awesome!!!!!!

Shambhavii - USA (27514)

Answer

Thanks for the feedback. I'm glad the material was useful to you.

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Work for force at an angle

Force

November 29, 2016

Question

1. Explain the nature of work done in the following conditions ( a force is applied 45 degrees to the direction of the movement of the object, a force is applied 125 degrees to the direction of the moving object ,a force is applied 90 degrees to the direction of movement of the obect)

kevin - Kenya (27510)

Answer

Work is the force applied over a distance. If the force is applied at an angle with respect to the direction of motion, the work done will be the cosine of the angle times the force times the distance moved.

For 45 degrees, it will be 0.707 * F * d.

For 90 degrees, the work will be 0.

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Handles for Treasure Chest Cookware

Health

November 29, 2016

Question

Hi, I have a set of treasure chest cookware from the mid 70s. To the best of my memory, they were 18/8 stainless steel waterless cookware. They are still in excellent condition, except for a couple of handles. Any ideas where I can find them. Thanks

Susan - USA (27511)

Answer

Your cookware sure has lasted a long time. You can check Treasure Chest Cookware, but the company is based in England.

You can check a local repair shop. They may be able to install generic handles. Best wishes for success in getting new handles.

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Thanks for resources

Knowledge

November 27, 2016

Question

Hi there,

Thanks for putting together your "Knowledge Resources" page . I was happy to come across it while looking for helpful study resources. I wanted to let you know that unfortunately one epistemology link is broken though. I assume you may want to take it down when you have a spare minute.

SuperSummary (http://www.supersummary.com) is another great site you may want to include. They have in-depth study guides on a variety of contemporary novels (including many newer books that aren't covered by the older study guide sites.) I think your visitors would find it to be a valuable addition to your page.

Let me know what you think. Hope you have a great day!

Best,

Julianna - USA (27507)

Answer

Thanks for letting me know about the broken link. I update the Resource page and included some additional resources, including SuperSummary.

I also added it to Good Grades Resources and Fiction Writing Resources.

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How can I do well in my exams?

Grades

November 27, 2016

Question

how can i get good grades in my exams?

cudjoe - Ghana (27508)

Answer

Of course, you need to understand the subject you are studying. It is good to take notes in class to help you study for the exam. Also, teachers often give hints on what will be on the tests, so you should be aware of that.

Read our lessons on preparing for tests and exams, starting with Be good at Taking Tests.

Best wishes in your studies and in taking exams. I am sure you will be successful.

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University entry test practice

Grades

November 24, 2016

Question

Sir Plz Send Me Some MCQS .... That Can Help me in different universities enter Tests ... Please Sir .. I Will Waiting For your Respected Respose..

Abbas - Pakistan (27502)

Answer

We only have the short Mini-Quiz questions. You can use Entry Test Preparation to take some Chemistry MCQS.

Best wishes in successfully entering the university.

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Deposition and sublimation

Matter

November 23, 2016

Question

Give me a details about deposition?
Can naphthalene ball changes directly into solid?

akshay - India (27501)

Answer

Disposition is a phase change or change of the state of matter where it goes directly from the gaseous state to a solid. It is often seem when water vapor (gas) changes to directly into ice crystals on a cold object. Disposition is the opposite of sublimation, where a solid will directly turn into a gas, such as with dry ice (CO2).

A naphthalene ball is a solid. It changes directly to a gas through sublimation.

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Want to be a motivational speaker

Speaking

November 22, 2016

Question

I WANT TO BE A MOTIVATIONAL SPEAKER. I NEED HELP AND I WANT TO KNOW HOW TO START PLEASE.

SCHNOLDINE - USA (27499)

Answer

A motivational speaker seeks to inspire the audience, as well as to motivate them to improve themselves.

It is good to try to see various motivational speakers perform in your area. Also, select some motivational speakers that you admire and listen to their audios or watch them on YouTube. This can give you ideas on how to present your material.

Of course, you need to have a subject that you will speak on. You can find organizations where you can give your talks for free in order to refine your material. Even Toastmasters is a good place to improve your skills.

Once you are giving your motivational speech around the area, you can seek paying bookings.

I hope that helps. Best wishes in your speaking career.

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Very helpful material

Thanks

November 21, 2016

Question

Thanks for your work.We are very helpful from this site

Anika - Bangladesh (27492)

Answer

I am glad the material has been useful to you. Best wishes for success in your endeavors.

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Hitting a golf ball

Force

November 16, 2016

Question

My name is Don Chelemedos. I am a PGA golf professional. I have a physics questions regarding the way in which force affects the motion of a golf ball after being struck by a golf club. Golf professionals have always understood and taught that the two factors affecting the direction and spin of a struck golf ball are club path and face angle. For many years, we have concluded that the club path was the more dominate factor when determining the initial direction of the ball following impact, i.e., Newton's First Law regarding an object's inertia, etc. However, over the past several years, many people have now concluded that it is actually the angle of the club face that determines the initial direction, i.e., a golf ball hit with a club having a clubface angle open or closed relative to the club path will cause the ball to go begin flight in that direction. Some say the influence is somewhere between 65-85%. Can you shed some light on this for me? Thank you, Don

Don - USA (27489)

Answer

I added an article that should help answer your question. See Force Vectors in Hitting a Golf Ball.

I hope this sheds some light. Best wishes for some good playing.

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Rocket powered car

Gravity

November 16, 2016

Question

I have a question: The Grand Canyon is about 1.6 km deep and has a minimum width of 6 km. How fast would a rocket powered car need to go to land at the base of the opposite cliff face?

Shoka - USA (27490)

Answer

See Effect of Gravity on Sideways Motion for explanation.

The equation to use is:

v = x/SQRT(2y/g)
where
v is the velocity,
SQRT is square root,
y is the depth (1.6 km),
x is the width (6km) and
g = 9.8 km/s^2

Calculation: v = 6/0.57 = 10.5 km/s

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Could magnetic fields be causing problems?

Health

November 14, 2016

Question

Hello Ron,my name is Michael G. McGovern. I am a Plumber and I was looking up info about the effects of a magnetic field on cells. I came upon your information and I found it to be excellent. Thank you.

I believe that the magnetic field from high voltage power lines caused the water in my brother in laws toilet to become hard water and ruin the toilet. I also believe that the same magnetic field caused his three daughters cells to not act according to there specific design. Two of the girls developed type 1 juvenile diabetes and the third developed thyroid problems. Both are cellular malfunctions.

I looked at the said problems from a plumbing point of view. Because the toilet looked like it had been accumulating deposit of minerals because of hard water but the water was soft I started to wonder how this could be possible. Then I looked out the window and I noticed the high voltage power lines. I believe that the power lines magnetic field caused the water to become hard. Like reversing the softening process. Which could be true.

I also started to read about power lines and their magnetic fields. One thing I did notice was that there is a higher rate of leukemia with people by the power lines. A cellular malfunction again.

Do you think it may be possible, if the magnetic field did cause the cells to not perform correctly, such as it appears to have done with the water. Could these cells which are not functioning correctly due to the effects from the magnetic field be made to in turn act accordingly. Such as we do with hard water?

Sorry if this is long and goofed up but I am trying to stay awake. I just turned 51 and I need a nap. Thank you for your time. Have a safe and positive day. Sincerely

Michael - USA (27487)

Answer

High voltage lines radiate electromagnetic fields. Some people are more sensitive to this radiation than others. However, my preference is not to live near them if possible.

Likewise, I don't think it is a good idea to sleep with an electric blanket, since the radiation is right near you, even if it is a lower power. Also, there had been studies about radiation from over-using cell phones or mobile phones. None of the studies actually proved the dangers 100%, but I prefer to be cautious.

The health problems that your nieces have may be a result of the radiation. But doctors really can't tell for sure.

As far as the water becoming hard goes, the minerals have to come from somewhere. High voltage electromagnetic fields wouldn't create those minerals. If he has a water softener, it may be on the blinks. Or maybe he needs one. Others in the neighborhood should have experienced the same problem.

Also, it would be worthwhile to see if other children in that neighborhood were having health problems.

I hope this helps, and best wishes for the health of the girls.

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