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What is the difference in average daily hotel room rates between Minneapolis and New Orleans? Suppose we want to estimate this difference by taking hotel rate samples from each city and using a 98% confidence level. The data for such a study follow. Use these data to produce a point estimate for the mean difference in the hotel rates for the two cities. Assume the population variances are approximately equal and hotel rates in any given city are normally distributed.
Consider a cantilever beam, having negligible mass and uniform flexural rigidity, with length 0.01 m. The frequency of vibration of the beam, with a 0.5 kg mass attached at the free tip, is 100 Hz. The flexural rigidity (in N.m2) of the beam is..
below is pressure measured at different timetime
a steel e 200 gpa yield strength 250 mpa circular rod 1 m long with a diameter of 0.25 m is put in tension. what is
Combine each of the following groups of variables into a single dimensionless group, a p-term.
the pressure tap on the surface of a heat exchanger tube is connected via flexible tubing to a pressure transducer.
Refrigerant 134a leaves the evaporator as saturated vapor at 1.4bar and is heated at constant pressure to 20 degrees C before entering the compressor.
An Ocean Thermal Energy Conversion (OTEC) power plant built in Hawaii in 1987 was designed to operate between the temperature limits of 86°F at the ocean surface and 41°F at a depth of 2100 ft.
Water cools at a rate of 0.1 deg C per second as it flows in a pipe at 1 m / s. At any fixed location, the temperature is independent of time. If the pipe is 10 m long, what must the temperature be at the upstream end to keep the water temperature at..
A swimmer with body mass 50 kg is pulled from the ocean with hypothermia. Her body temperature is 27°C. She is connected to a shell and tube heat exchanger. Blood flow through the device is kept constant at 1,000 ml/min. The perfusionist adjusts the ..
a prototype disk brake for a bicycle was designed and consists of a pair of pads area 5 cm x 1 cm pressed against
an air-water vapor mixture at 0.1 mpa 30degc 80 rh has a volume of 50 m3. calculate the specific humidity dew point wet
a piston cylinder assembly containing h2o initially has a temperature of 130degc and a specific internal energy of 700
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