Saturday

April 19, 2014

April 19, 2014

Total # Posts: 14

**Chemistry**

Which of the following are requirements for anionic polymerization? a)A double bond b)End groups which can react by releasing a small molecule c)A strong base to initiate the reactionA strong acid to initiate the reaction d)An electron-withdrawing group near the double bond Wh...

**statistics**

The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 410 grams and a standard deviation of 10 grams. Find the weight that corresponds to each eventa. A.Highest 30 percent b. Middle 70 percent to c. Highest 90 percent d. Lowest 20 perc...

**math**

A cliff on the bank of a river is 300m high if angle of deprssion of a point on the oposite side of the river is 60 digree find the wigth of the river

**precalculus**

if f(x)=2x and g(x)= x+1 , what do you think someone means by (f+g)(x)? what about (f/g)(x)?

**chemistry**

so am I treating density as Sp. heat?

**chemistry**

25.6 {\rm mL} of ethanol (density =0.789 {\rm g}/{\rm mL}) initially at 8.0^\circ {\rm C} is mixed with 39.5 {\rm mL} of water (density = 1.0 {\rm g}/{\rm mL}) initially at 23.1^\circ {\rm C} in an insulated beaker. Assuming that no heat is lost, what is the final temperature ...

**From Theory To Practice**

1.a 2.b 3.d 4.a 5.b 6.c 7.a 8.? 9.c 10.a 11.a 12.? 13.? 14.? 15.c 16.d 17.a 18. b 19. D 20.c

**physics (Mathmate)**

The space shuttle is in a 250 mile high orbit. What are the shuttle's orbital period, in minutes and its speed?

**physics**

A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s around an axis perpendicular to its center. A second disk that is not rotating is dropped onto the first disk so that their centers align, and they stick together. The mass of the second disk is 0.45 kg and its r...

**Physics **

thnks so much

**Physics **

A skier of mass 64 kg starts from rest at the top of an 18° slope, points her skis straight down the slope and lets gravity pull her down the slope. The slope is 65 m long. Her speed at the bottom is 15 m/s. (a) Assuming zero air resistance, what is the magnitude of the f...

**Biology**

What molecules cycle between the light and light independent phase of photosynthethis?

**Biology**

what molecules cycle between the light dependent and light independent stages of photosynthethis

**chemistry**

planar

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