Thursday
December 12, 2013

Posts by Nadine

Total # Posts: 76

Physics
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced emf? If the coil r...

Physics help?
Thank you!

Physics help?
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. If the loop's diameter changes from 17.8 cm to 6.4 cm in 0.22 s, what is the direction of the induced current? What is the magnitude of the average induced emf? If the coil r...

Math
9 x 5 5 x 9

Math
A box holds one layer of 45 baseballs. How can the baseballs be arranged?

Math
Players on Team; Tennis 2, Basketball 5 A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? My answer is 31 athletes. Is this right?

science/math
A juice processing operation uses steam to heat the fruit juice up to a temperature of 96̊C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39̊F to its heat treatment temperature. H...

Math
What is the difference between a likely event and an unlikely event?

calculus
If 7 and 4 are exponents, take the derivative. You should get x^6(x+1)^3(11x+7), setting the derivative equal to zero gives you 0, -1, and -7/11 as critical numbers. Test numbers in the intervals [-12,-1], [-1, -7/11], [-7/11,0] and [0,10]. If the first derivative comes out po...

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol.

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