A 0.60-kg mass at the end of a spring vibrates 3.0 times per second with an amplitude of

Principles of General Chemistry 2
Problem 31P Indium (In) reacts with HC1 to form a diamagnetic solid with the formula InCl2. (a) Write condensed electron configurations for In, In+, In2+, and In3+. (b) Which of these species is (are) diamagnetic and which paramagnetic? (c) What is the apparent oxidation state of In in InCl2? (d) Giv

Elementary Statistics: A Step By Step Approach 9
Problem 18CQ Hours Spent Studying A university dean wishes to estimate the average number of hours that freshmen study each week. The standard deviation from a previous study is 2.6 hours. How large a sample must be selected if he wants to be 99% confident of finding whether the true mean differs f

Classical Mechanics 0
Consider an object that is coasting horizontally (positive x direction) subject to a drag force f = by cv2. Write down Newton's second law for this object and solve for v by separating variables. Sketch the behavior of v as a function of t. Explain the time dependence for t large. (Which force term i

Fundamentals of Physics: 9
A bead with mass 1.8 X 10-2 kg is moving along a wire in the positive direction of an x axis. Beginning at time t = 0, when the bead passes through x = 0 with speed 12 mis, a constant force acts on the bead. Figure 7-22 indicates the bead's position at these four times: to = 0, t1 = 1.0 s, t2 = 2.0 s

Physics: Principles with Applications 6
The Achilles tendon is attached to the rear of the foot as shown in Fig. 9-66. When a person elevates himself just barely off the floor on the "ball of one foot." estimate the tensionFtin the Achilles tendon (pulling upward), and the (downward) forceFBexerted by the lower leg bone on the foot. Assume

Fundamentals of Statistics 4
The data set on the left represents the annual rate of return (in percent) of eight randomly sampled bond mutual funds, and the data set on the right represents the annual rate of return (in percent) of eight randomly sampled stock mutual funds. (a) Determine the mean and standard deviation o

Krugman's Economics for AP* 2
At right is a simplified circular-flow diagram for the economy of Micronia. a. What is the value of GDP in Micronia? b.What is the value of net exports? c. What is the value of disposable income? d.Does the total flow of money out of householdsthe sum of taxes paid and consumer spendingequal the tota

Cognitive Psychology: Connecting Mind, Research and Everyday Experience 4
How does the attention involved in carrying out actions in the environment differ from the attention involved in scanning a picture for details, as in the previous observation exercise?