Engineering, 14.02.2020 22:49 aryal191
In Millikan's oil drop experiment, if the electricfield between the plates was of just the right magnitude, it wouldexactly balance the weight of the drop. Suppose a tiny sphericaloil droplet of radius 1.6 X 10-4 cm carries a chargeequivalent to one electron. What electric field is required tobalance the weight? (The density of oil is 0.85 g/cm3,e= 1.6 X 10-19 C.)
Answers: 2
Other questions on the subject: Engineering
Engineering, 04.07.2019 18:10, lowkeyqueenk
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Engineering, 04.07.2019 18:20, miguel454545
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
You know the right answer?
In Millikan's oil drop experiment, if the electricfield between the plates was of just the right mag...
Questions in other subjects:
Geography, 14.12.2019 06:31
Social Studies, 14.12.2019 06:31
Health, 14.12.2019 06:31
Business, 14.12.2019 06:31
