Physics, 10.10.2019 18:30, silasjob09
The legend that benjamin franklin flew a kite as a storm approached is only a legend — he was neither stupid nor suicidal. suppose a kite string of radius 2.10 mm extends directly upward by 0.823 km and is coated with a 0.517 mm layer of water having resistivity 168 ω·m. if the potential difference between the two ends of the string is 165 mv, what is the current through the water layer? the danger is not this current but the chance that the string draws a lightning strike, which can have a current as large as 500 000 a (way beyond just being lethal).
Answers: 1
Physics, 21.06.2019 22:20, ayoismeisalex
1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?
Answers: 1
Physics, 22.06.2019 03:30, sere50
The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
Answers: 3
Physics, 22.06.2019 12:30, mikurrjurdan
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
The legend that benjamin franklin flew a kite as a storm approached is only a legend — he was neithe...
Mathematics, 21.04.2021 23:40
Mathematics, 21.04.2021 23:40
Biology, 21.04.2021 23:40
Mathematics, 21.04.2021 23:40
Mathematics, 21.04.2021 23:40