Thursday
December 12, 2013

# Posts by ann

Total # Posts: 1,091

Physics HELP!!
A square, 0.74m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 26.8N lies in this plane and is applied to the square. What is the magnitude of the maximum...

Physics HELP!!
A lower 0.56m long leg is being exercised. It has a 48.0N weight attached to the foot and is extended at an angle θ with respect to the vertical. Consider a rotation axis at the knee. At what angle θ does the magnitude of the torque equal 14.2 N-m?

chemistry
what elements follow the octet rule?

chemistry... HELP !!!!!!!
For the reaction 2Co^3+ (aq) + 2Cl^- (aq) ----> 2Co^2+ + Cl2 (g) E^o = 0.46 V (STANDARD cell potential) what is the cell potential at (25 deg C) if the concentrations are [Co^3+] = 0.651M , [Co^2+]= 0.846 M, and [Cl^-] = 0.636 M and the pressure of Cl2 is PCl2= 9.30 atm ?

chemistry... HELPP
A gaseous reaction occurs at a constant pressure of 45.0 atm and releases 62.5 Kj of heat. Before the reaction, the volume of the system was 8.60 L . After the reaction, the volume of the system was 3.00 L. Calculate the total internal energy change in kilojoules.

chemistry... HELP
Equilibrium constant question!!!? Standard reduction potentials Reduction half-reaction E(V) Ag+(aq) + e- ---> Ag (s) 0.80 Cu ^2+ (aq) + 2e- ---> Cu (s) 0.34 Sn^4+(aq) + 4e- ---> Sn (s) 0.15 2 H+(aq) + 2e- ---> H2 (g) 0 Ni^2+(aq) + 2e- ---> Ni (s) -0.26 Fe^2+ (a...

chemistry
The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) cell potential=4.4 V Calculate the f...

working with children from culturally diverse
which cultures are most closely aligned in valuing dependence over autonomy? American mainstream and Native American or Mexican American and Native American

science
If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two wires?

Internet Server Environments
What is Cold FusionMX and how would you accommodate on a Windows 2000 server?

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