What is the net torque about the axle on the pulley in

Introductory Chemistry 5
A backpacker wants to carry enough fuel to heat 2.5 kg of water from \(25\ ^{\circ}\mathrm{C}\) to \(100.0\ ^{\circ}\mathrm{C}\). If the fuel she carries produces 36 kJ of heat per gram when it burns, how much fuel should she carry? (For the sake of simplicity, assume that the transfer of heat is 100

An Introduction to Thermal Physics 1
Problem 11P Consider a gas of hard spheres, which do not interact at all unless their separation distance is less than r0, in which case then interaction energy is infinite. Sketch the Mayer f-function for this gas, and compute the second virial coefficient. Discuss the result briefly.

Chemistry: Atoms First 1
Problem 46QP Because fluorine has seven valence electrons (2s22p5), seven covalent bonds in principle could form around the atom. Such a compound might be FH7 or FCI7. These compounds have never been prepared. Why?

Mathematical Statistics and Data Analysis 3
This problem introduces a random effects model for the one-way layout. Consider a balanced one-way layout in which the I groups being compared are regarded as being a sample from some larger population. The random effects model is \(Y_{i j}=\mu+A_

Living by Chemistry 2
You mix solid hydrated barium hydroxide, Ba(OH)2 ? 8H2O(s), and solid ammonium nitrate, 2NH4NO3(s), in a beaker. Th e reaction is shown here. A small pool of water in contact with the outside of the beaker freezes. Ba(OH)2 ? 8H2O(s) 1 2NH4NO3(s) 2NH3( g) 1 10H2O(l) 1 Ba(NO3)2(aq) a. List all the sub

Human Biology 11
You are a living organism. Which characteristics of life do you exhibit?

Biology: Concepts and Applications 10
Where does translation take place in a eukaryotic cell?

Chemistry for today : general, organic, and biochemistry 9
Why is it necessary that protein molecules be enormous?