Physics, 14.09.2019 03:20 GunnerWilbert5178
What properties does a loud, shrill whistle have? a.) high amplitude, high frequency
b.) high amplitude, low frequency
c.) low amplitude, high frequency
d.) low amplitude, low frequency
Answers: 2
Physics, 22.06.2019 01:10
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
Answers: 3
Physics, 22.06.2019 12:30
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Answers: 2
Physics, 22.06.2019 14:40
During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?
Answers: 1
Physics, 22.06.2019 23:00
Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.
Answers: 1
What properties does a loud, shrill whistle have? a.) high amplitude, high frequency
b.) high...
b.) high...
Mathematics, 27.12.2019 10:31
History, 27.12.2019 10:31
Social Studies, 27.12.2019 10:31
Mathematics, 27.12.2019 10:31
Mathematics, 27.12.2019 10:31
Chemistry, 27.12.2019 10:31
Chemistry, 27.12.2019 10:31
History, 27.12.2019 10:31
Mathematics, 27.12.2019 10:31
Computers and Technology, 27.12.2019 10:31
Mathematics, 27.12.2019 10:31
Physics, 27.12.2019 10:31