Question
In: Advanced Math
1. As dry air moves upward, it expands and, in so doing, cools at a rate...
1. As dry air moves upward, it expands and, in so doing, cools at a rate of about 1oC for each 100-meter rise, up to about 12 km. If the ground temperature is 10oC on the ground, what range of temperatures can be expected if an airplane takes off and reaches a maximum height of 4 km? (1 km = 1000 meters
2. What amount of a 15% HCL acid solution must be mixed with a 20% HCL acid solution to obtain 50 milliliters of 18% solution?
3. A telephone company offers two long-distance plans:Plan A: $25 per month and $.05 per minutePlan B: $5 per month and $.12 per minuteFor how many minutes of long-distance calls would Plan B be financially advantageous?
Solutions
Colby Messinger answered 2 years agoRelated Solutions
As dry air moves upwards, it expands and then cools at a rate of 1°C for...
As dry air moves upwards, it expands and then cools at a rate of
1°C for each 100 m rise, up to about 12 km.
a. If the ground temperature is 20°C, find an expression for the
temperature T as a function of the height h. Assume a linear
function.
b. Use this function to predict the temperature at 5 km up from
ground level.
c. Find the derivative of the function with appropriate units.
What does the derivative of...
Dry air is bubbled through 25.0 liters of water at a rate of 15 L (STP)...
Dry air is bubbled through 25.0 liters of water at a rate of 15
L (STP) / Min. The air leaving the liquid is saturated with water
at 25 C and 1.5 atm. How long will it take for all the water to
vaporize ? answer: 67.8 days
1. Why should I not use the house air to dry my glassware?
1. Why should I not use the house air to dry my glassware?
2. Comment on whether ir not the correction volume is within the error allowed for each
Buret, volumetric, beaker, and erlenmeyer flask
Dry, compressed air at Tm,i = 85°C, p = 20 atm, with a mass flow rate...
Dry, compressed air at
Tm,i = 85°C, p = 20 atm, with a mass
flow rate of m?? = 0.005kg/s, enters a 30-mm- diameter,
5-m-long tube whose surface is at Ts = 25°C.
Determine the thermal entry length, the
mean temperature of the air at the tube outlet, the rate of heat
transfer from the air to the tube wall, and the power required to
flow the air through the tube. ?
The air in a room has a pressure of 1 atm, a dry-bulb temperature of 24°C,...
The air in a room has a pressure of 1 atm, a dry-bulb
temperature of 24°C, and a wetbulb temperature of 17°C. Using the
psychrometric chart, determine
(a) The specific humidity,
(b) The enthalpy, in kJ/kg dry air,
(c) The relative humidity,
(d) The dew-point temperature,
and (e) The specific volume of the air, in m3/kg dry air.
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry air forms an...
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry
air forms an equilibrium mixture of CO2, CO,
O2, and N2 at 2800 K, 1 atm. Determine the
equilibrium composition.
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry air forms an...
A vessel initially containing 1 kmol of CO and 4.76 kmol of dry
air forms an equilibrium mixture of CO2, CO, O2, and N2 at 2800 K,
1 atm. Determine the equilibrium composition.
1. Why is the culture at Sealed Air so important?
CEO's StatementSealed Air's success in the marketplace is a direct result of
the efforts of more than 17,000 dedicated individuals worldwide,
combined with the unique culture found inside our company.Talented individuals come together at Sealed Air to create an
innovative, collaborative, customer-focused workplace. Our pride in
the accomplishments of today generates the creativity and effort
which will lead to the successes of tomorrow.Sealed Air places high value on each of our
employees and the contributions they make every day. We...
1. The unemployment rate a. increases as the economy moves from a trough to a peak...
1. The unemployment rate
a. increases as the economy moves from a trough to a peak of the
business cycle. b. increases as the economy moves from a peak to a
trough of the business cycle. c. reaches a peak at the beginning of
a recession. d. reaches its lowest number at the trough of the
business cycle.
4. ______________ workers are those who have dropped out of the
labor force due to feeling pessimistic about their prospects of
finding...
Suppose the Indian central bank (RBI) increases its target overnight interest rate. In doing so it...
Suppose the Indian central bank (RBI) increases its target
overnight interest rate. In doing so it is clearly trying to
increase interest rates in the money market (and throughout the
economy).
(c) Suppose we could treat the Indian economy as a closed one.
What effect will the results of the policy have on investment, on
aggregate expenditure? Include diagrams in your answer.
(d) Although not as open to capital flows as Canada, we can
think of India is an open...
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