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Ask an Expert Topic Forum: Grades 9-12: Physical Science

What's the current flow and heat loss? What's the current flow and heat loss? Hi, I got a different answer from the book. Please confirm the answer, my answer for question 1 was 0.0417A but the book is 0.046A. I do not know how to do question 2. Thanks [u] Question 1[/u] An energy saving bulb with 240 V power supply, produces 10 joules of light energy per second. Calculate the current flowing through the bulb. [u] Question 2[/u] Calculate the heat energy loss of the bulb… Read more

How do I wire it correctly? Please help

Ask an Expert Topic Forum: Grades 9-12: Physical Science

How do I wire it correctly? Please help How do I wire it correctly? Please help Hi, I encountered the attached question, somehow I only know that I should change the switch connection for fan B to live wire then I'm lost for the remaining parts. Please enlighten me on how I should have a complete and correct diagram for question a(ii). Thanks [attachment=0]Question.pdf[/attachment] Re: How do I wire it correctly? Please help Hello Sacred, If you are planning to do a hands-on science… Read more

Physics

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Physics Physics Me and my friends want to do a science project about magnetic induction and use it to create electric energy but we don't know much about this so please help us :D Re: Physics Hello, Sounds like fun! Here's a link to a project you might enjoy with your friends. It also includes details on magnetic induction to help you get started. https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p097/physics/high-speed-magnets-faradays-law-lenzs-law Good… Read more

Vitamin c in OJ

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Vitamin c in OJ Vitamin c in OJ Hi. As part of my science fair project I used DCPIP to try and work out the concentration of Vit C in store brought juices. We only had a small amount of DCPIP so pipetted small volumes of OJ into 1 ml volumes of DCPIP. Problem is all the literature works out mg of Vit C by titrating DCPIP into OJ and not the other way round. I didn’t do a standard curve, I just added the OJ to the DCPIP and now I can’t figure out how to work out the mg of Vit C in the OJ. Help… Read more

Can/should we to bring back/clone extinct species?

Ask an Expert Topic Forum: Grades 9-12: Life, Earth, and Social Sciences

Can/should we to bring back/clone extinct species? Can/should we to bring back/clone extinct species? For my science inquiry for the biology unit, I decided to look at cloning and the ethics behind that. I've got 6 supporting question to answer the main question which is "Can/should we to bring back/clone extinct species?" These are my supporting questions: Q1: Would extinct species survive in the present? Q2: Is it okay to clone some species but not others? * Q3: Is there a difference… Read more

What are the Best wireless dog fence reviews?

Ask an Expert Topic Forum: Grades 9-12: Physical Science

What are the Best wireless dog fence reviews? What are the Best wireless dog fence reviews? Concerning the collar, there are various kinds of imperceptible electrified barrier accessible with various advantages and disadvantages. The principal thought here is the kind of reaction seen once the creature arrives at the limit. Some discharge a static charge and other use commotions. Everything depends which you and your pet are generally OK with. It is likewise worth taking a gander at the… Read more

Modifying Activated Carbon for Adsorption of CO2 And Water Pollutants

Ask an Expert Topic Forum: Grades 9-12: Physical Science

Modifying Activated Carbon for Adsorption of CO2 And Water Pollutants Modifying Activated Carbon for Adsorption of CO2 And Water Pollutants I am a high school student that got really interested in adsorption and want to do it for a project. I am mainly interested in increasing selective adsorption of CO2 or for heavy metals (arsenic, lead, etc) from water. I have a few questions regarding certain research papers and also how to get a research mentor.… Read more

Computer science

Ask an Expert Topic Forum: Grades 9-12: Math and Computer Science

Computer science Computer science Manipulating sound files I am having troubles with creating a program code to manipulate sound files. Where can I find websites that will give me ideas on how to manipulate sound files using visual basic programming. Thank you Re: Computer science If you are trying to write your own software, we would recommend doing some searches for tututorials for visual basic that might tie into sound files. We don't have projects using visual basic at Science Buddies… Read more

Can you assume ?

Ask an Expert Topic Forum: Grades 9-12: Math and Computer Science

Can you assume ? Can you assume ? Although this number is probably now decreasing, a few years ago, nearly 40% of the 110 million new bicycles manufactured annually in the world were produced and used in China. How often (in years) did the average citizen of China get a new bicycle? from Problem Set "element of environmental science" Re: Can you assume ? These forums are not for general homework problems. Are you a student working on a project? Science Buddies Read more

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