Write the formulas for the following compounds:

Introductory Chemistry 5
Evaporating sweat cools the body because evaporation is endothermic and absorbs 2.44 kJ per gram of water evaporated. Estimate the mass of water that must evaporate from the skin to cool a body by \(0.50\ ^{\circ}\mathrm{C}\), if the mass of the body is 95 kg and its heat capacity is \(4.0\mathrm{\ J

Fundamentals of Physics 10
Two particles are fixed on an x axis. Particle 1 of charge 40 mC is located at x # $2.0 cm; particle 2 of charge Q is located at x # 3.0 cm. Particle 3 of charge magnitude 20 mC is released from rest on the y axis at y # 2.0 cm.What is the value of Q if the initial acceleration of particle 3 is in th

Sears and Zemansky's University Physics with Modern Physics 13
Problem 21E A hollow, conducting sphere with an outer radius of 0.250 m and an inner radius of 0.200 m has a uniform surface charge density of +6.37 X 10-6 C/m2. A charge of -0.500 C is now introduced at the center of the cavity inside the sphere. (a) What is the new charge density on the outside o

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

OpenIntro Statistics 3
A migraine is a particularly painful type of headache, which patients sometimes wish to treat with acupuncture. To determine whether acupuncture relieves migraine pain, researchers conducted a randomized controlled study where 89 females diagnosed with migraine headaches were randomly assigned to one

Campbell Biology in Focus - Standalone book 1
A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has about 20,500 genes. About 1,000 of these genes are present in both types of cells. Based on your understanding of evolution, explain how such different organisms could have this same subset of genes. What sorts of fun

Advanced Engineering Mathematics 10
Find the trigonometric polynomial F(x) of the form (2) for which the square error with respect to the given f(x) on the interval \(-\pi<x<\pi\) is minimum. Compute the minimum value for \(N=1,2, \cdots, 5\) (or also for larger values if you have a CAS). \(f(x)=|x| \quad(-\pi<x<\pi)\)

Principles of Economics 9
Command-and-control regulation may be better than a corrective tax if a. a corrective tax would have differential effects on different industries. b. some polluters can reduce emissions more cheaply than others. c. the negative externality is so large that the optimal quantity is zero. d. knowledge a