HOMEWORK:
- Math-- How many ways can you buy 12 donuts if you can only choose from 5 flavors?
- Physics-- Probset (see last page in hand out)
- STR-- Please answer the Chi Square test handouts given nung Friday and the ANOVA test handouts given nung Thursday (that's just two in total, plus we'll need to answer more on Monday D:)
- Filipino Play - Finish it!'
Feb 27:
Filipino Play?
Feb 28:
Math LT on combinations, permutations, counting
Feb 29:
Java LT - I'm guessing Scanner and input and output streams and readers, combo boxes, etc.
English LT (as far as I know this is the set date) on Rashomon (story and book), haiku, and In A Grove
WebDev LT -Mostly Javascript, but includes HTML and CSS
March 1:
Bio LT on Reproduction and Hormones and Development and Things
Chem LT on Organic Chem
March 2:
Physics LT3 - Thermodynamics
STR LQ
WebDev PT
If there are any who missed out on the handouts:
Physics PS
Copy each problem and write your solutions to whole sheet/s of pad paper. Follow the format in problem solving. (Due Feb 26, 2012, Monday)
1. Calorimetry/Heat If the price of electrical energy is P 11.00 per kilowatt-hour, what is the cost of using electrical energy to heat the water in swimming pool (12.0m x 9.00 m x 1.5 m) from 15 to 27 deg. C?
2. Phase Change. An aluminum can with a mass of 0.500 kg contains 0.130 kg of water at a temperature of 80.0 deg. C. A 0.150 kg of ice at -2.0 is dropped into the can. Find the final temperature of the mixture. Assume no heat loss to the surroundings. The specific heat capacities of aluminum, water, and ice are 9.00 x 10^2 J/kg.Cdeg. , 4186 J/kg.Cdeg. , and 2.00 x 10^3 J/kg.Cdeg. respectively. The latent heat of fusion of ice is 33.5 x 10^5 J/kg.
Hint: Q(water) + Q(aluminum) = Q(ice)
3. Thermal Expansion. A brass cylinder is initially 20.0 deg.C. At what temperature will its volume be 0.300% larger than it is at 20.0 deg.C. The coefficient of linear expansion of brass is Alpha(brass) - 2.0 x 10^5 /Cdeg. Note:Beta = 3Alpha
4. Conduction. One end of an insulated (to the environment) metal rod is maintained at 100 deg.C, and the other end is placed in an ice-water mixture. The bar has a length of 50.0 cm and a cross-section area of 0.800cm^2. the heat conducted by the rod melts 3.00 g of ice in 5.00 min. The latent heat of fusion of ice is 80cal/g. Calculate the thermal conductivity k of the metal.
5. Radiation. The supergiant star Betelgeuse has a surface temperature of about 2900 K and emits a radiant power of approximately 4.00 x 10^30 W. Assuming that Betelgeuse is a perfect emitter (e=1) and spherical, find its radius.
Optional problems/exercises/problems (for consultation also)
Physics by Giancoli by (3rd Ed.)
Problems 18, 22, 26, 33; pp. 388-389.
