In Exercises 21–42, find the derivative of y

College Physics 1
Problem 5PE Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per rub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warmed

Physics with MasteringPhysics 4
Problem 11P IP Three 6.75-kg masses are at the corners of an equilateral triangle and located in space far from any other masses. (a) If the sides of the triangle are 1.25 m long, find the magnitude of the net force exerted on each of the three masses. (b) How does your answer to part (a) change if t

Fundamentals of Physics 10
In Fig. 26-33, a battery of potential difference V ! 12 V is connected to a resistive strip of resistance R ! 6.0 0. When an electron moves through the strip from one end to the other, (a) in which direction in the figure does the electron move, (b) how much work is done on the electron by the electr

Physics for Scientists & Engineers with Modern Physics 4
The total electric flux from a cubical box 28.0 cm on a side is 1.84 X 103N m2/C. What charge is enclosed by the box?

OpenIntro Statistics 3
Family size. Suppose we want to estimate household size, where a household is defined as people living together in the same dwelling, and sharing living accommodations. If we select students at random at an elementary school and ask them what their family size is, will this be a good measure of house

Campbell Biology 10
A land snail, a clam, and an octopus all share a. a mantle. b. a radula. c. gills. d. distinct cephalization.

Campbell Biology 10
Unlike eutherians, both monotremes and marsupials a. lack nipples. b. have some embryonic development outside the uterus. c. lay eggs. d. are found in Australia and Africa

Glencoe Accounting: First Year Course, Student Edition 1
Identifying Types of Businesses Instructions In your working papers, indicate whether each of the following businesses is a service business, a merchandising business, or a manufacturing business. 1. International Business Machines (IBM) 2. Gap 3. Glendale Memorial Hospital 4. Avis Ren