Physics, 31.03.2020 00:45 ahmadfarriz4088
3. Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha Centauri AB. Alpha Centauri A has 1.1 times the mass of the Sun while Alpha Centauri B has 0.907 times the Sun’s mass. (Sun’s mass is 1.989 x 1030 kg.) The pair orbit about a common center with an orbital period of 79.91 years. Their elliptical orbit is eccentric, so that the distance between A and B varies, but if we assume it is circular, we can calculate the average velocities. Find the average velocities of the two stars.
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Physics, 21.06.2019 14:40
An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.
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Physics, 21.06.2019 21:00
State the right hand rule of the direction of magnetic field in a conductor carrying current
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Physics, 21.06.2019 21:00
Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit
Answers: 1
3. Alpha Centauri A and B are Sun-like stars, and together they form the binary star Alpha Centauri...
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