How long will it take until the reading is say 22.8 degrees

Assignment Help Civil Engineering
Reference no: EM13552886

1.Consider a lake whose fish population is governed by the equation: dP/dt= 0.1P[(P/10)-1] if the initial fish population is 3,000 and assuming no fishing is allowed in the lake, what is the fish population after 10 days?

2.a thermometer reading 10 degrees Celsius is brought into a room whose temperature is 23 degrees Celsius. two minutes later the thermometer reading is 18 degrees Celsius. how long will it take until the reading is say 22.8 degrees Celsius?

Reference no: EM13552886

Questions Cloud

Write an assay about tomothynosis : Write an assay about tomothynosis and its potential use in clinical mammography
What is the final temperature of the water : What is the final temperature of the water?
What would be the voltage measured by a voltmeter : What would be the voltage measured by a voltmeter with one wire connected at B and its other wire connected to D? Assume the answer is positive and that the switch is closed.
How many possible solutions for x and y : Consider the following two simultaneous equations :x^2 + y^2 = 42x + 3*y + 2*y^2= 6 How many possible solutions for x and y? Note: one solution is pair of (x,y) 8 2 1 4
How long will it take until the reading is say 22.8 degrees : Consider a lake whose fish population is governed by the equation: dP/dt= 0.1P[(P/10)-1] if the initial fish population is 3,000 and assuming no fishing is allowed in the lake, what is the fish population after 10 days?
Why did the lactose tolerance mutation in the east african : Why did the lactose tolerance mutation in the East African herders spread so rapidly within the population?
Why are the predator and prey growth curves out of phase : In Predator-Prey Model 1, why are the predator and prey growth curves out of phase?
Determine theta when the crates begin to slide : Crates A and B weigh 240lb and 250lb , respectively. They are connected together with a cable and placed on the inclined plane If the angle theta is gradually increased.
Determine the axial stress in the tank wall : A steel scuba tank is 24 in. long and has an external diameter of 7.25 in. and an internal diameter of 6.7 5in. Say the tank is to carry a pressure of 3000psi . Determine the hoop stress in the tank wall. Determine the axial stress in the tank wall.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the shear and moment diagram

A glass window contains a water body as shown below. Assuming the glass cross section is simply supported on the horizontal direction, and that the hydrostatic pressure varies with respect to depth as rho

  What is the concentration of the chemical in the water

25 mg chemical Y (log kow = 2.88) is added to a microcosm (i.e., tank) that contains 1 kg soil, 20 L water. Chemical Y has negligible volatility (very low partitioning to air). The soil is mized with water for several days until equilibrium (between ..

  What is the deflection of the manometer

A grain-size analysis for a uniform sand in a loose state indicated that the soil particle diameter corresponding to 10% passing on the grain-size distribution curve is 0.18 mm. Estimate the coefficient of permeability.

  Find e in terms of b and h to have one type of normal stress

For arectangular section (b(width) x h(thickness) that is subjected to aforce P that is applied at an eccentricity (e) measured from thecenter of area of the rectangle in the h(thickness)direction

  Alternative water resource projects

Consider two alternative water resource projects, A and B. Project A will cost $2,533,000 and will return $1,000,000 at the end of 5 years and $4,000,000 at the end of 10 years.

  Determine was driver exceeding the speed limit at time zero

A car is traveling along a road at a uniform velocity when at time zero the driver recognizes a hazard. At a moment 0.8 seconds later the driver brakes her vehicle , resulting in her vehicle sliding 90 ft in the same direction

  Find width of channel when flow is in critical condition

A rectangular unfinished concrete channel with wood forms is laid on a bottom slope of 0.0064 to carry a flow of 20m^3/s of water. Determine the width of the channel when the flow is in critical condition.

  Determine the elevation and stationing of the low point

A 1400-ft-long sag vertical curve (equal tangent)has a PVC at station 115 + 00 and elevation 750 ft. The initial grade is -3.5% and the final grade is +6.5%. Determine the elevation and stationing of the low point, PVI, and PVT

  Suppose the utility encourages its customers to replace

Suppose a utility generates electricity with a 36 percent efficient coal-fired power plant emitting the legal limit of 0.6 lb of SO2 per million Btus of heat into the plant. Suppose the utility encourages its customers to replace their

  Determine magnitude of tension t and x-y-z components

If the pulleys are fixed to the shaft, determine the magnitude of the tension T and the x,y,z componenet sof reaction at the smooth thrust bearing A and smooth journal bearing B.

  Determine the moment of the force about line joining points

the triangular plate ABC is supported by ball and socket joints at B and D and is held in the position shown by cables AE and CF. If the force exerted by cable AE at A is 1000N , determine the moment of the force about line joining points D and B.

  Determine moles of helium in cylinder

As the piston is compressed, the pressure also increases by 2000000 Pa. If there is 4 times as many atoms of nitrogen as helium, how many moles of helium are in the cylinder?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd