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yaroslaw [1]
4 years ago
6

Many galaxies appear to have supermassive black holes in their centers powering active galactic nuclei (also called AGN). The Sc

hwarzschild radius of these supermassive black holes can be estimated in part by watching for changes in the brightness of the surrounding AGN and measuring the timescale of those changes. Assume we observe an AGN and determine it varies with a timescale of 7.39 minutes, which implies a Schwarzschild radius on the order of 1.33×1011 meters. Estimate the mass of this supermassive black hole.
Physics
1 answer:
Lena [83]4 years ago
5 0

Answer:i dont remember

Explanation: ?>>> confused

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A stationary, 1000 kg car starts at the top of a 10 meter hill. What is the total energy of the car
Umnica [9.8K]

Answer: 98,000 J

Explanation: The total energy or mechanical energy is expressed in the following equation:

ME= PE + KE

PE = mgh

= 1000 kg x 9.8 m/s² x 10m

= 98000 J

ME = PE - KE

= 98000 J - 0 J

= 98000 J

7 0
4 years ago
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An airplane travels 1200 km in 90 minutes. What is the average speed in m/s for this trip?
gladu [14]

Answer:

the answer is 1333.33m/s

3 0
3 years ago
. In a high school graduating class of 100 students, 47 studied mathematics, 61 studied physics, and 25 studied both mathematics
gtnhenbr [62]

Answer:

given,

Probability of student studying math P(M)=\dfrac{45}{100} = 0.45

Probability of student studying physicsP(P) = \dfrac{61}{100} = 0.61

Probability of student studying both math and physics together P(M∩P) = \dfrac{25}{100} = 0.25

a) student took mathematics or physics

P(M∪P) = P(M) + P(P) - P(M∩P)

             = 0.45 + 0.61  - 0.25

             = 0.81

b) student did not take either of the subject

P((M∪P)') = 1 - 0.81

               = 0.19

c) Student take physics but not mathematics

P(P∩M') = P(P) - P(P∩M)

             = 0.61 - 0.25

             = 0.36

studying physics and mathematics is  not mutually exclusive because we can study both the subjects.

8 0
3 years ago
A bucket filled with water has a mass of 54 kg and is hanging from a rope that is wound around a 0.050 m radius stationary cylin
Lubov Fominskaja [6]

Answer:

The magnitude of the torque the bucket produces around the center of the cylinder is 26.46 N-m.

Explanation:

Given that,

Mass of bucket = 54 kg

Radius = 0.050 m

We need to calculate the magnitude of the torque the bucket produces around the center of the cylinder

Using formula of torque

\tau=F\times r

\tau=mg\times r

Where, m = mass

g = acceleration due to gravity

r = radius

Put the value into the formula

\tau=54\times9.8\times0.050

\tau=26.46\ N-m

Hence, The magnitude of the torque the bucket produces around the center of the cylinder is 26.46 N-m.

3 0
3 years ago
most responsible for the formation of a star is most responsible for the formation of a star is blank Force
Bad White [126]
That would be gravitational force. Check out creation.com. Search up "star-formation" in their search bar. Hope this helped.
5 0
4 years ago
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