Shrinking according to a logistic model
Suppose the population of a town is shrinking according to a logistic model with initial population 1000 and carrying capacity 10,000. if the population shrinks to 682 after two years, what will the population be after 5 years?
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Ten kilograms of saturated liquid water at 5 bar is heated in a piston-cylinder assembly at constant pressure until temperature reaches 400 degrees C. Show the process on a T versus V diagram.
A health study reported that in one country, systolic blood preassure reading hav a mean of 123 and a standard deviation of 14. A reading above 140 is considered to be high blood pressure. Complete parts a through d below.
The vapor pressure of water at 20degreesC is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 x102g of sucrose(C12H22O11) and 3.50 x102g water?
A 87.0 kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations? (a) when the elevator is accelerating upward with an acceleration of 1.00 m/s2
Low carbon steel plate 12" wide with an initial thickness of 1/4". Compute the rolling force (neglect friction). Compute the power required to accomplish the operation.
The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of magnitude 3.00 m/s2. Ignoring air resistance, find the tension in the cable towing the sensor.
Suppose your daughter is on a swim team which has a total of 10 girls. Two of the girls are daughters of the coach. The team was given three free tickets to watch a national swim meet.
Compute the rolling forces and the power requirement for this modification of the process. Friction may be neglected in the force calculations.
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