A tugboat tows a barge at constant speed with a 3500-kg

Introductory Chemistry 5
Write electron configurations for each transition metal. (a) Zn (b) Cu (c) Zr (d) Fe

Mathematical Statistics with Applications 7
Applet Exercise 1. Use the applet Chi-Square Probabilities and Quantiles to find \(P[Y>E(Y)]\) when Y has \(\mathrm{X}^{2}\) distributions with 10, 40, and 80 df. 2. What did you notice about \(P[Y>E(Y)]\) as the number of degrees of freedom increases as in part (a)? 3. How does what you observed i

Classical Mechanics 0
The maximum displacement of a mass oscillating about its equilibrium position is 0.2 m, and its maximum speed is 1.2 m/s. What is the period r of its oscillations?

Chemistry 11
Carbon dioxide has a linear geometry and is nonpolar. Yet we know that the molecule executes bending and stretching motions that create a dipole moment. How would you reconcile these conflicting descriptions about \(\mathrm{CO}_{2}\)?

Physics, 9
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 70.3-kg water-skier has an initial speed of 6.10 m/s. Later, the speed increases to 11.3 m/s. Determine the work done by the net external force acting on the skier.

Organic Chemistry 9
A student wanted to use the Williamson ether synthesis to make (R)-2-ethoxybutane. He remembered that the Williamson synthesis involves an SN2 displacement, which takes place with inversion of configuration. He ordered a bottle of (S)-butan-2-ol for his chiral starting material. He also remembered th

Principles of Economics 6
Consider a monopolistically competitive market with N firms. Each firms business opportunities are described by the following equations: Demand: Q = 100/N P Marginal Revenue: MR = 100/N 2Q Total Cost: TC = 50 + Q2 Marginal Cost: MC = 2Q a. How does N, the number of firms in the market, affect each

Urban Economics 8
Consider the Dinks (double income, no kids). Mr. Dink commutes to a job in the city center (x=0), while Ms. Dink commutes to a suburban subcenter four miles east of the city center. The Dinks consume the same quantity of housing at all locations. Travel speed is the same in both directions. a . Draw