Physics, 26.07.2019 22:30 Liantic8738
Using only newtonian gravity and approximate values to get an approximate answer. consider two collapsed stars, each with a mass of 10a32 kg. they are orbiting the midpoint between them with a frequency of 100 hz, and so are radiating gravitational waves at twice this frequency*. estimate the distance between them. (newton's constant of universal gravitation is 6.67*10^11 n. m^2.kg^-2. * they only briefly have this frequency, because the energy of their gravitational radiation comes from their orbital energy, so they are spiralling rapidly inwards supplementary question: dr blair jnr, (an excited australian physicist working on the project) was interviewed on radio national this morning and chose to demonstrate them using a cello. why a cello rather than a violin? both can play what physicists call a chirp and what musicians call portamento. can you think why it might be difficult to find frequencies much higher than 100 hz?
Answers: 3
Physics, 21.06.2019 17:10
Aseries circuit consists of a resistor with r = 20 ? , a capacitor with c = 0.01 f, and a decaying battery with e = 300e? 5t. if the initial charge is 0, find the charge as a function of time t
Answers: 2
Physics, 22.06.2019 08:00
Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
Answers: 2
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
Physics, 22.06.2019 23:00
A6.0-μf air-filled capacitor is connected across a 100-v voltage source. after the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). how much additional charge flows from the voltage source, which remained connected during the process?
Answers: 1
Using only newtonian gravity and approximate values to get an approximate answer. consider two colla...
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