Solve for population density as a function of distance
A study of urban density shows that the population density A (in persons/mi2) is related to the distance s (in mi) from the city center by logeA=logep-vs+ns3, where p, v, and n are positive constants. Solve for A as a function of s.
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A ball is thrown horizontally off of a 40-meter high cliff. It lands in the water 30 meters beyond the edge of the cliff. Find the speed with which the ball was thrown.
Estimate the amount of water this cyclist must evaporate per hour (through sweat) to get rid of excess body heat she produces. Assume a skin emissivity of .70
Suppose you have 20.81 g of water,initially at 25.00 oC, in a perfectly insulated container. You then add water which is at 83.71 oC tothe container until the combined sample of water has a temperature of 58.71 oC.
Non-relativistic protons accelerated by a potential difference U form a round beam with current I. Find the magnitude and direction of the Poynting vector outside the beam at a distance r from its axis.
A study of urban density shows that the population density A (in persons/mi2) is related to the distance s (in mi) from the city center by logeA=logep-vs+ns3.
Measured on the Richter scale, the magnitude of an earthquake of density I is defined as R = log (I/I0) where I0 is a minimum level for comparison. What is the Richter scale reading for an earthquake for which I=72,000,000I0?
Calculate the hydronium and hydroxide ion concentrations in the solution. Then calculate the mass of magnesim hydroxide needed to make 250ml of the solution.
To reach the equivalence point of a titration, 32.75 ml of 0.350M HCl was added to 25.0 ml of an NH3 solution of unknown concentration. what is the pH of at the equivalence point?what is the pH at the half equivalence point?
Write an equation that using the variable t to represent the time it takes to paint the room together that can be used to solve the problem.
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