Physics, 26.07.2019 23:30 aseel667789
Consider an electromagnet (e. g. in a relay) that is operated at 50 a. if the inductance of the coil is 100 h and the time to switch-off the current is 1 ms, what voltage will be developed across its terminals?
Answers: 3
Physics, 21.06.2019 19:30
Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
Answers: 1
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedesâ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 10:40
Two point charges are on the y axis. a 3.90-”c charge is located at y = 1.25 cm, and a -2.4-”c charge is located at y = â1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v
Answers: 1
Physics, 22.06.2019 14:30
Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity
Answers: 3
Consider an electromagnet (e. g. in a relay) that is operated at 50 a. if the inductance of the coil...
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