QUESTION 6: watch this video: on youtube titled "16 Subatomic Stories: Gravitational waves - ripples in spacetime" by Fermilab 6.1 Why does the orbital time for two merging neutron stars decrease? Is this an energy transfer process? 6.2 What is the speed of a gravitational wave? QUESTION 7: look at the picture attached 7.1 How far away is the source (the distance to the black holes) 7.2 What are the mass ranges of the two black holes. A solar mass has a symbol of M? 7.3 What is the energy radiated by gravity waves? This is given in the fact sheet in terms of solar masses. What is this in Joules. You need to use Einstein's famous equation E=mc2, where c is the speed of light and m is the mass. This equation relates mass and and energy. QUESTION 8: 8. As the two black holes (or neutron stars) merge, they lose energy to gravity waves (energy transfer). Due to this, their orbits decrease and the orbital frequency increases. We call this a chirp. If the frequency signal is made into an audio signal, it sounds like this, (on youtube titled "comparing 'chirpsm from black holes" by LIGO Lab) QUESTION 9: It is my great please to introduce to you Emmy Noether. Watch this video, on youtube titled "The most significant genius: Emmy Noether" by Fermilab. What is Noether's theorem? What is the symmetry associated with momentum conservation? What is the conservation law associated with time invariance symmetry? What symmetry is associated with conservation of angular momentum? Where do conservation laws come from?

1of 1 7 08 14 : FACTSHEET observed by H1, L1, V1 duration from 30 Hz - 0.26 to 0.28 s source type black hole (BH) binary # of cycles from 30 Hz - 15 to 16 date 14 Aug 2017 credible region sky area time 10:30:43 UTC 60 deg (with V1) online trigger latency - 30 5 credible region sky area 1160 deg2 signal arrival time delay at L1 8 ms before H1 (without V1) and 14 ms before V1 latitude, longitude 45' S, 73* W signal-to-noise ratio 18 (at time of arrival) false alarm rate sky location in direction of $ 1 in 27 000 years Eridanus constellatio probability of noise 0.3% *RA, Dec 03h1 1m. -44 57" producing V1 SNR peak Peak GW strain (10 22) 6, 6, 5 oh distance 6h 1.1 to 2.2 billion (H1, L1. V1) light-years peak stretching of redshift 0.07 to 0.14 interferometer arm ~ + 1.2, 1.2, 0.8 ar total mass 53 to 59 M. (H1, L1, V1) primary BH mass 28 to 36 M, frequency at peak 155 to 203 Hz GW strain secondary BH mass 21 to 28 M. wavelength at peak 1480 to 1930 km mass ratio 0.6 to 1.0 GW strain 51 to 56 M. peak GW luminosity 3.2 to 4.2 x 10' remnant BH mass erg s- remnant BH spin 0.65 to 0.77 radiated GW energy 2.4 to 3.1 Mc remnant size 139 to 153 km remnant ringdown freq. 312 to 345 Hz (effective radius) remnant damping time 3.1 to 3.6 ms remnant area 2.4 to 2.9 x 105 km2 consistent with general passes all tests effective spin parameter -0.06 to 0.18 relativity? performed effective precession evidence for unconstrained none spin parameter dispersion of GWs Parameter ranges correspond to 90% credible intervals. L1/H1=LIGO Livingston/Hanford, V1=Virgo, am=attometer=10-18 m, Me=1 solar mass=2 x 1020 kg Background Images (H1, L1, V1 from left to right): time-frequency trace (top), sky maps (middle), and time series with reconstructed waveforms from modeled and un-modeled searches (bottom) * Maximum a Posteriori estimatesWatch this video: https://www.google.com/search? q gravitational+waves+fermi+lab&oq=gravitation al+waves+fermi+lab&aqs=chrome..69157j33i10i16 0.4754j0j9&sourceid=chrome&ie=UTF- 8#fpstate=ive&vid=cid:b05d467c,vid:coGQPjCgLc Y. (You don't have to pay attention to the question segment at the end.) 6.1 Why does the orbital time for two merging neutron stars decrease? Is this an energy transfer process? 6.2 What is the speed of a gravitational wave?8. As the two black holes (or neutron stars) merge, they lose energy to gravity waves (energy transfer). Due to this, their orbits decrease and the orbital frequency increases. We call this a chirp. If the frequency signal is made into an audio signal,Look over this gravitational wave factsheet, https://dcc.ligo.org/public/0145/G1701862/011/G W170814-FactSheet.pdf. 7.1 How far away is the source (the distance to the black holes) 7.2 What are the mass ranges of the two black holes. A solar mass has a symbol of M