Decomposers: Ecosystem Balance & Life's Unsung Heroes

Introduction to Probability, 2
A motorist goes through 4 lights, each of which is found to be red with probability 1/2 . The waiting times at each light are modeled as independent normal random variables with mean 1 minute and standard deviation 1/2 minute. Let X be the total waiting time at the red lights. (a) Use the total proba

Chemistry 9
A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 50.0 g water at 25.08C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/8C ? g

Fundamentals of Physics, Volume 2 (Chapters 21 - 44) 10
If a Saturn V rocket with an Apollo spacecraft attached had a combined mass of 2.9  105 kg and reached a speed of 11.2 km/s, how much kinetic energy would it then have?

Chemistry 13
Write the equilibrium constant expression for the following reaction: \(A(s)+B(g) \rightleftharpoons C(s)\)

Biology: The Dynamic Science 5
According to the Oparin-haldane hypothesis, the atmosphere when life began was believed to be composed primarily of the following substances that contain the maximum number of electrons:

Plant Systematics 3
What is the difference between alternate and distichous? Between opposite and decussate?

Chemistry for today : general, organic, and biochemistry 9
Explain why the rate of chemical reactions is generally slow for organic compounds and usually fast for inorganic compounds.

Biochemistry 9
Suggest a possible conclusion from the fact that peptidyl transferase is one of the most conserved sequences in all of biology.