A black hole is called so because it is a hypothetical object. a) True b) False
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A black hole is called so because it is a hypothetical object.
a) True
b) False
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- in terms of relativity What is an "event"? Give a specific example of an event and provide the coordinates necessary to specify the event.Event Horizon is a region around a black hole where: group of answer choices: even light cannot escape. all the events are occurring speed of an object is close to speed of light. no physical object can pass through. r nothing can enter .8 and 9
- Part A Assuming that these spectral lines correspond to the 656.46-nm hydrogen line in the rest frame, estimate the speed V of the center of mass of the binary system. Express your answer in kilometers per second to three significant figures .Part B Determine the mass M of each star. Express your answer in kilograms to one significant figure.https://www.compadre.org/PQP/special-relativity/section2_4.cfm A) Look at the first animation. Change the value of Beta. What do you observe when betais 0.1 vs. when beta is 0.9?B) Look at the second animation. Change the value of Beta. What do you observe whenbeta is 0.1 vs. when beta is 0.9?A particle has γ=9,681. Calculate c-v in m/s. Gamma is chosen to make the particle extremely close to the speed of light.) If your calculator gives problems, you might want to solve the appropriate equation for c-v or c(1 - v/c) and use an approximation.
- If you were traveling inside a spaceship at a speed of c/2 relative to Earth and you fired a laser beam in the direction of the spaceship's motion, the light from the laser would travel at a speed of 2c relative to Earth. True False_____________________ occurs when light travels out of a gravitational field, loses energy, and its wavelength grows longer. a. A magnetar b. Time dilation c. A gravitational redshift d. An X ray burst e. A pulsar windAnswer question 22 please
- 2. Determine the Schwarzschild radius and the average density of a black hole formed by the gravitational collapse of the Sun (m = 1.99 × 10 kg). 30 ad by the gravitationala) Determine the wavelength of light (6563A) observed by a distant observer that is emitted by a source at rest: i) at a radius of r = 2.2M outside a black hole of mass M = 1 Ma. ii) where = -6x 10-5.In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun that occupy less space than our moon. Suppose that one of these black holes has a mass of 1x10^3 suns and a radius equal to one-half the radius of our moon. What is the density of the black hole in g/cm^3? The radius of our sun is 7.0x10^5 km, and it has an average density of 1.4x10^3 kg/m^3. The diameter of the moon is 2.16x10^3 miles.