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8 godz. temu · A small radio transmitter broadcasts in a 40 mile radius. If you drive along a straight line from a city 49 miles north of the transmitter to a second city 46 miles east of the transmitter, during how much of the drive will you pick up a signal from the transmitter? A small radio transmitter broadcasts in a 40 mile radius.
8 godz. temu · Other evidence indicates that the charge is twice the unit charge carried by the hydrogen atom set free in the electrolysis of water. ... weighing approximately 8000 times more than an electron and travelling at a speed of 10,000 miles per second, should hit (according to Thomson’s model) a bunch of electrons, immersed in a sphere of positive ...
8 godz. temu · Thomson JJ (1904) On the structure of the atom: an investigation of the stability and periods of oscillation of a number of corpuscles arranged at equal intervals around the circumference of a circle; with application of the results to the theory of atomic structure. Lond Edinb Dublin Philos Mag J Sci 7 (39):237–265.
8 godz. temu · The core is the only region of the Sun that produces an appreciable amount of thermal energy through fusion; 99% of the power is generated within 24% of the Sun's radius, and by 30% of the radius, fusion has stopped nearly entirely. The rest of the Sun is heated by this energy as it is transferred outward through many successive layers, finally ...
