BMWX1

Questions and Answers

Your Questions About X100

March 3, 2013

David asks…

What would be a good camera for beauty videos on youtube?

I’m thinking of becoming a beauty guru on youtube and I really don’t know what camera to get, I need one that I could see myself like a camcorder and I need the quality to be really good, and especially the sound.
Also really inexpensive and It doesn’t have to be some super duper fancy one.
Anyone know what one I should get?
Thanks x

Administrator answers:

You can get it here

Samsung EC-PL120 Digital Camera with 14.2 MP and 5x Optical Zoom (Black)

http://www.amazon.com/gp/product/B004L3JPX0?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B004L3JPX0

Toshiba Camileo X100 Full-HD Camcorder – Silver/Black

http://www.amazon.com/gp/product/B003DZ1224?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B003DZ1224

Kodak Zi6 Pocket HD Camcorder (Pink)

http://www.amazon.com/gp/product/B001FWC2YE?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B001FWC2YE

Samsung SMX-F50BN SD Camcorder with 65x Zoom (Black)

http://www.amazon.com/gp/product/B004HO595G?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B004HO595G

Samsung EC-ST65 Digital Camera with 14 MP and 5x Optical Zoom (Indigo Blue)

http://www.amazon.com/gp/product/B004NWC31U?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B004NWC31U

Sony Cyber-Shot DSC-TX10 16.2 MP Waterproof Digital Still Camera with Exmor R CMOS Sensor, 3D Sweep Panorama and Full HD 1080/60i Video (Black)

http://www.amazon.com/gp/product/B004H8FNGM?ie=UTF8&tag=neonsh-20&linkCode=xm2&camp=1789&creativeASIN=B004H8FNGM

James asks…

What is the basic equation for solving reverse percentages?

If I have an offer to purchase item ‘X’ which is now at £10, and the seller claims this new price is saving at 60% of the original price, how much was the original price and what is the basic equation to solve this?

Administrator answers:

If the new price is ACTUALLY 60% of the original price, then it’s:

The new price divided by 60 x100/1 ie 10/60 x100/1 = the old price of £16.66 (to 2 decimal places)

If,however, you are saying that the new price means you make a SAVING of 60%, then you are actually saying that the £10 represents 40% of the original price, then it’s:

10/40 x 100/1 = 1000/40 = £25

Lisa asks…

How many degrees are between the melting pot of ice and the boiling point of water on the Kelvin scale?

2. Calculate the energy in joules released by 20 grams of 100 degrees Celsius steam that condenses and then cools to 0 degrees Celsius?
3. How many joules are needed to raise the temperature of 1 gram of water by 1 degrees Celsius?

Administrator answers:

1) the number of degrees are 100

2) heat energy released = 20 x 540 + 20 x100 = 12800 calories = 12800 x4.2 J = 53760 J

3) energy needed Q = m c (t2-t1) = 1 x 1 x 1 = 1 calorie = 4.2 J

Lizzie asks…

How do you find how many atoms of an element are in a compound?

I need to find how many Oxygen atoms are in 1 gram of Al2(SO4)3. I have tried finding the mass percent, and working it from there, but I can’t get the right answer. Does anyone know how to solve this?

Administrator answers:

Mole contain (6.02 x10 to the power 23) of molecules
1 gm /molecular weight of Al2(SO4) = no. Of moles in one g
molecular weight of O2/molecular weight of the sulphate x100= percent of oxgen in one mole,
then calculate the percent of oxgen in the moles in 1 g
the result multiplied by 6.02 x 10 to the power 23 gives the no.of oxgen in 1 g of sulphate and then the numbers of atoms of Oxygen.

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