Answered: The escape velocity at the event… | bartleby

Related questions

Question

The escape velocity at the event horizon of a black hole is 3×108 m/s, i.e., the velocity of light. What is the mass of the black hole if the distance from its centre to the event horizon is 18km?

a) 12.15 x 10-30 kg

b) 12.15 x 1030 kg

c) Infinity

d) Cannot be determined

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

What is the mass (in kg) of the Z0 ? What is the ratio of the mass of the Z0 to the mass of the proton?
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 gravitational
In Lorentz transformation appears the Lorentz factor denoted by the Greek letter Y. This Lorentz factor Select one: a. depends on the relative speed between two inertial reference frames. b. depends on the location of the event as seen by two inertial reference frames. depends on the velocity of the particle on which we want to perform the transformation. c. d. depends on the speed of the particle on which we want to perform the transformation. e. is an invariant constant of nature. ⚫ f. depends on the relative velocity between two inertial reference frames. ×
a) 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.
You are the pilot of a spacecraft intended for travel at very high speeds. Before leaving you measure the spacecraft to be 31.4 m long and have a mass of 5.28 x 104 kg. During your travel, you pass a planet and exchange information with an observer on the planet. You are told that your spacecraft has been measured to be 28.6 m long. a. How fast is your spacecraft travelling with respect to the planet? b. You are told there is a nearby planet that is stationary with respect to the first planet. The observer on the first planet says it will take you 25 s to reach the nearby planet. How far away does your co-pilot on the spacecraft say the nearby planet is? c. How much energy was required to accelerate your spacecraft to this speed?
Two objects, m1 and m2 are gravitationally attracted to one another. However, m1 is 500 times more massive than m2. Which mass experiences the greater gravitational attractive pull force? A) mass m1 experiences a greater attractive force from m2 B) mass m2 experiences a greater attractive force from m1 C) both masses experience equal but opposite attractive forces D) the problem statement does not provide enough information to be solved
Suppose Google wants to launch a surveillance satellite to invade the privacy of all their users. They need it to revolve around Earth 10.0 times a day for maximum invasive efficiency. a) Draw a free-body diagram b) What should the radius of its orbit be if we neglect the presence of the Moon? c) How fast is it traveling? G = 6.67 * 10 ^-11 N*m^2/kg^2 M earth = 5.97 * 10^24 kg
24. A person in a spaceship passing Earth observes her own heart rate to be 75 beats / minute and her spaceship to be 60 m long. A person on Earth observes the spaceship person's heart rate to be 45 beats / minute and her spaceship to be long. A.36 m B. 48 m C. 60 m D. 75 m E. 100 m
1.) In what way(s) is Einstein's general theory of relativity superior to Newton's theory of universal gravitation? For each way, give an example of a case where Einstein's theory provides a more accurate description of physical phenomena than does Newton's. (Select all that apply.) A.) Newton's theory originally held that the orbit of a spherical object about another will be an open curve for which the point of closest approach slowly precesses. Einstein's theory correctly predicts that gravitational forces lead to orbits of closed ellipses. B.) Einstein's theory correctly predicts the deflection of light passing near a massive object, while Newton's theory predicts a deflection that is one-half the observed deflection. C.) Einstein's theory correctly predicts that the orbit of a spherical object about another will be an open curve for which the point of closest approach slowly precesses. Newton's theory originally held that gravitational forces lead to orbits of closed…
QUESTION 3 - The following equation refers to v-pendulum experiment: T4 = (44 L ki g²)(8 m4L/g² )d, where : L: length of the string (2 meters). T: pendulum periodic time d: distance between rods k: pendulum constant g: gravitational acceleration Given that the slope of the graph (T4,d) = -14.2 s4/m, and y-intercept = 13.5 s4, Find the value for g: 9.81 m/s2 O Can't be defined a- 8.51 m/s2 a 10.5 m/s²
2. An alternative derivation of the mass-energy formula E, = moc² also given by Einstein, is based on the principle that the location of the center of mass (CM) of an isolated system cannot be changed by any process that occurs inside the system. The Figure below shows a rigid box of length L that rests on a frictionless surface; the mass M of the box is equally divided between its two ends. A burst of electromagnetic radiation of energy E, is emitted by one end of the box. According to classical physics, the radiation has the momentum p = "0%c , and when it is emitted, the box recoils with the speed v z Eo/ so that the total momentum of Mc the system remains zero. After a time t z L/c the radiation reaches the other end of the box and is absorbed there, which brings the box to a stop after having moved the distance S. If the CM of the box is to remain in its original place, the radiation must have transferred mass from one end to the other. Show that this amount of mass is m, = c2.
3 Recently, astronomers have observed stars and other objects that orbit the center of the Milky Way Galaxy farther out than our Sun, but move around faster than we do. How do astronomers think such an observation can be explained? J C all these faster-moving objects must be escaping from the gravity of the Milky Way and will soon be lost to our Galaxy it is the Sun that is moving too slowly because of a collision billions of years ago; the outer objects are really moving at the appropriate speed for their distance from the center Othere must be a great deal of invisible dark matter outside the orbit of the Sun whose gravitational pull explains the faster motions we see out there each of the faster-moving outer objects must be the result of a supernova explosion (giving them extra speed) O no one can come up with any explanation for this puzzling observation F3 $ 4 R F 1 H F4 V Search DII % 5 T F5 G -0- ^ 6 B F6 Y H -- F7 & 7 U N PrtScn F8 J * 8 Home | F9 M ( 9 K End F10 O PgUp L

SEE MORE QUESTIONS