Reference no: EM13859409
. Let the pressure P and temperature T at a point (x, y, z) be P(x, y, z) =( x^2+2y^2) /( 1 + z^2), T(x, y, z) = 5 + xy z^2
,a. If the position of an airplane at time t is(x(t), y(t), z(t)) = (2t, t^2 1, cost),find d/dt(P T)^2 at time t = 0 as observed from the airplane.
The shape of a hill is given by z = 1000 - 0.02x^2 - 0.01y^2. Assume that the x-axis ispointing East, and the y-axis is pointing North, and all distances are in metres.3 marks (a) What is the direction of the steepest ascent at the point (0, 100, 900)? (The answershould be in terms of directions of the compass).
(b) What is the slope of the hill at the point (0, 100, 900) in the direction from (a)?
(c) If you ride a bicycle on this hill in the direction of the steepest descent at 5 m/s,what is the rate of change of your altitude (with respect to time) as you pass throughthe point (0, 100, 900)?
Economic conditions-including inflation and economic growth
: Consider the current economic conditions, including inflation and economic growth. Do you think the Fed should increase interest rates, reduce interest rates, or leave interest rates at their present levels? Offer some logic to support your answer
|
Easement assignment
: Below are three parcels of real property A, B and C. B wants to have a built-in swimming pool installed in his backyard. In order to run the water line directly from the main in the street to the site, the line must run over his neighbor’s property. ..
|
Briefly summarize the impact of an oil import tax
: Briefly summarize the impact of an oil import tax by explaining who is helped and who is hurt among the following groups: domestic oil consumers, domestic oil producers, foreign oil producers, and the US government.
|
Straight-line depreciation method
: ABC Company purchased a new computer at the beginning of the year at a cost of $1,600. The estimated salvage value is $100. The estimated useful life is 3 years. Complete the schedule below for the 3 years using Straight-Line Depreciation Method.
|
What is the direction of the steepest ascent at the point
: The shape of a hill is given by z = 1000 - 0.02x^2 - 0.01y^2. Assume that the x-axis ispointing East, and the y-axis is pointing North, and all distances are in metres.3 marks (a) What is the direction of the steepest ascent at the point (0, 100, 900..
|
Find the equation involving t whose solution tells
: In the year 1900, in the country Acirema, there were 100 Lawyers and 4 million people. Every 10 years, the number of Lawyers doubles, and the population increases by 2 million. Let t be the number of years after 1900. Thus t=3 corresponds to 1903. Fi..
|
All negations should be simplified as
: Express the negation of the following statement. All negations should be simplified as much as possible. ∀x ∃y (y > 0 → (-2 ≤ x 6))
|
In new york city in the late 1970s and early 1980s
: In New York City in the late 1970s and early 1980s, parking meter collections averaged $1.75 million per month with a standard deviation of $302 thousand per month. Assume that the amount generated per month is Normal with the mean and standard devia..
|
What is the maximum allowable ampacity
: What is the maximum allowable ampacity of a #2 AWG THHN copper conductor connected to a breaker having 60 C termimal ratings
|