subject
Physics, 10.03.2020 08:54 nkidane2802

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is 1.20 kg/m3 at the inlet and 1.015 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 14:40, cesarcastellan9
Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?
Answers: 2
image
Physics, 22.06.2019 03:30, itsRyanPlayzMC9660
Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.
Answers: 1
image
Physics, 22.06.2019 08:20, jrjordans13ox06qs
At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?
Answers: 1
image
Physics, 22.06.2019 12:00, marquez8
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
You know the right answer?
A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors ar...

Questions in other subjects: