Solution: The rings of Saturn are composed of chunks of ice

College Physics 1
Problem 2PE (a) When rebuilding her cars engine, a physics major must exert 300 N of force to insert a dry steel piston into a steel cylinder. What is the magnitude of the normal force between the piston and cylinder? (b) What is the magnitude of the force would she have to exert if the steel parts

Classical Mechanics 0
A particle moves in a circle (center O and radius R) with constant angular velocity \(\omega\) counter-clockwise. The circle lies in the xy plane and the particle is on the x axis at time t = 0. Show that the particle's position is given by \(\mathrm{r}(t)=\hat{\mathrm{x}} R

Organic Chemistry 7
Determine the degree of unsaturation for the hydrocarbons with the following molecular formulas: a. \(\mathrm{C}_{10} \mathrm{H}_{16}\) b. \(\mathrm{C}_{20} \mathrm{H}_{34}\) c. \(\mathrm{C}_{8} \mathrm{H}_{16}\) d. \(\mathrm{C}_{12} \mathrm{H}_{20}\) e. \(\mathrm{C}_{40} \mathrm{H}_{56}\)

Sears and Zemansky's University Physics with Modern Physics 13
Problem 62E Two rods, one made of brass and the other made of copper, are joined end to end. The length of the brass section is 0.300 m and the length of the copper section is 0.800 m. Each segment has cross-sectional area 0.00500 m2. The free end of the brass segment is in boiling water and the fr

BSCS Biology: A Molecular Approach 9
Summarize the three steps in the Oparin-Haldane hypothesis for the origin of life.

Campbell Biology 9
A controlled experiment is one that a. proceeds slowly enough that a scientist can make careful records of the results. b. tests experimental and control groups in parallel. c. is repeated many times to make sure the results are accurate. d. keeps all variables constant. e. is supervised by an experi

Biology 8
The reactivity of an atom arises from a. the average distance of the outermost electron shell from the nucleus. b. the existence of unpaired electrons in the valence shell. c. the sum ofthe potential energies of all the electron shells. d. the potential energy of the valence shell. e. the energy diff

Probability and Statistical Inference 9
A random sample X1, X2, ... , Xn of size n is taken from a Poisson distribution with a mean of , 0 << . (a) Show that the maximum likelihood estimator for is 6 = X. (b) Let X equal the number of flaws per 100 feet of a used computer tape. Assume that X has a Poisson distribution with a mean of . If