Mathematics Homework Solutions

Electromotive forces...

An electromotive force of 100 volts is in series with a 2 henry inductor and a 50m ohm resistor. a. Determine the current i at any time t after the switch is closed b. Determine the maximum current that can be obtained in the simple circuit described.

LRE and CRE circuits DE problem

A 20 ohm resistor, a .05 farad capacitor, and an alternating power source equal to 40 cos(t) are placed in series. If the initial charge on the capacitor is 3 coulombs, find a general formula for the charge at any time t.

Cable hanging on a peg

The problem involves a picture, so I am attaching the whole thing as a picture and as a .pdf document

Cable hanging on a peg

The problem involves a picture, so I am attaching the whole thing as a picture and as a .pdf document.

Text Book: - Linear Algebra, Author: - Insel, 3rd Edition

Text Book: - Linear Algebra, Author: - Insel, 3rd Edition Following questions to be answered In page Number: - 52 & 53 : Questions: - 12, 21 In Page Number :- 54 :- Question :- 25 In page Number: - 247 :- Question : - 2 / c, d In Page Number: - 248 & 249 : - Question: - 3/ b,c. 4, 8/a, 11/a, b. 12/a In Page ...continues

Lanchester Combat Model

Attached is the question I need help with. Thanks.

Differential equations

1. Solve: x*(dy/dx) - y = 2(x^2) * y 2. General solution for: dy/dx = ((x^2) + 1)/(2 - y) then particular solution for y = 4, x = - 3 Thank you

First Order Differential Equations

I attached three problems. Please help providing details solution with explanation. Thanks 1. Given satisfying , ; π ; find 2. Given such that , ; list all possible solutions. For which of these does ?; ? 3. Suppose for it is known that Where “a” is a parameter. Determine the value of this p ...continues

First Order Differential Equations

1. In the following, represent the situation pictorially and deduce the governing 1st order differential equations and initial condition for the quantity in question. a) A tank, containing 300 gallons of pure water initially, is emptied out in the following fashion. A salt solution of concentration ½ lb of salt per gallon is ...continues

XieCorp is a pc solutions provider that is looking to expand its operations. - Balance Income Statement

XieCorp is a pc solutions provider that is looking to expand its operations. Currently it has $500K (K=thousand) to invest in an upgrade in facilities. The goal is the hire additional staff to acquire new customers. Last year 20XX XieCorp made $13M (M=million) in total revenues. Their expenses were 65% of revenue and they were t ...continues

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