dx dt dy dt = 5 2 1 4 x y 4.

Physics: Principles with Applications 6
A grinding wheel 0.35 m in diameter rotates at 2500 rpm. Calculate its angular velocity in rad/s. (b) What are the linear speed and acceleration of a point on the edge of the grinding w heel?

Sears and Zemansky's University Physics with Modern Physics 13
Problem 50E The Cosmo Clock 21 Ferris wheel in Yokohama, Japan, has a diameter of 100 m. Its name comes from its 60 arms, each of which can function as a second hand (so that it makes one revolution every 60.0 s). (a) Find the speed of the passengers when the Ferris wheel is rotating at this rate.

Sears and Zemansky's University Physics with Modern Physics 13
Problem 58P An L-C circuit consists of a 60.0-mH inductor and a 250-?F capacitor. The initial charge on the capacitor is 6.00 ?C, and the initial current in the inductor is zero. (a) What is the maximum voltage across the capacitor? (b) What is the maximum current in the inductor? (c) What is the m

Chemistry 11
Calculate the number of cations and anions in each of the following compounds: (a) 0.764 g of CsI, (b) \(72.8\ \text{g}\ K_2Cr_2O_7\), (c) \(6.54\ \text{g}\ \text{of}\ Hg_2(NO_3)_2\).

The Economics of Money, Banking and Financial Markets 12th
Open market operations are typically repurchase agreements. What does this tell you about the likely volume of defensive open market operations relative to the volume of dynamic open market operations?

Urban Economics 8
Consider Snarlsville, a city that will vote on a proposed revenue-neutral con- gestion tax. Consider the following statement from the Chamber of Commerce: The tax will be bad for business, so we urge all business owners to vote NO. Suppose bad for business means sales revenue will decrease. a. The co

Organic Chemistry 8
Predict all approximate bond angles about each highlighted carbon atom. To make these predictions, use valence-shell electron-pair repulsion (VSEPR) theory (Section 1.4).

Biology: The Dynamic Science 5
Suppose a garden in your neighborhood is filled with red, white, and blue petunias. Explain the floral colors in terms of which wavelengths of light are absorbed and reflected by the petals.