For Exercises 51–54, solve for the angle , where sin2 =

Introductory Chemistry 5
Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. (a) urine (b) pure water (c) SnickersTM bar (d) soil

An Introduction to Thermal Physics 1
Problem 13P Use a Maxwell relation from the previous problem 1 and the third law of thermodynamics to prove that the thermal expansion coefficient ? (defined in Problem 2) must be zero at T = 0. Problem 1: Functions encountered in physics are generally well enough behaved that their mixed partial d

Fundamentals of Physics 10
The plates of a spherical capacitor have radii 38.0 mm and 40.0 mm. (a) Calculate the capacitance. (b) What must be the plate area of a parallel-plate capacitor with the same plate separation and capacitance?

Classical Mechanics 0
By evaluating their dot product, find the values of the scalar s for which the two vectors b = x + s'Sr and c = x sS7 are orthogonal. (Remember that two vectors are orthogonal if and only if their dot product is zero.) Explain your answers with a sketch.

Campbell Biology 9
Fossilized stromatolites a. all date from 2.7 billion years ago. b. formed around deep-sea vents. c. resemble structures formed by bacterial communities that are found today in some warm, shallow, salty bays. d. provide evidence that plants moved onto land in the company of fungi around 500 million y

Essential University Physics 3
Starting from rest, a skier slides 100 m down a 28 slope. How much longer does the run take if the coefficient of kinetic friction is 0.17 instead of 0?

Human Anatomy & Physiology 9
Lymphocytes that develop immunocompetence in the bone marrow are (a) T lymphocytes, (b) B lymphocytes, (c) NK cells, (d) B and T lymphocytes.

Statistics for People Who (Think They) Hate Statistics 7
For the following set of data, by hand, correlate minutes of exercise with grade point average (GPA). What do you conclude given your analysis? These data are saved as Chapter 5 Data Set 5.