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That really depends on the circumstances. A black hole doesn't emit any radiation directly (except for an insignificant amount of Hawking radiation); however, any time matter falls into the black hole, it tends to emit large amounts of x-rays. Also, the black hole can affect nearby objects by its gravitational attraction, just like the Sun affects the movement of the planets. So, even when you can't see it, you can still detect it, if there are nearby objects.
What else can I help you with?
How do you play supper massive black hole by muse?
Easy! just buy "Black Holes and Revelations", skip to that song, then press play!
What is a conn song flute?
A black fluit 6in. tall, and it has 7 holes. {plus it's easy to play} @nts rull
Are photons difficult to detect?
Generally, photons are very easy to detect. Your eyes do a good job of detecting photons within a certain frequency band, as photons constitute light and other electromagnetic radiation. Individual photons are impossible to detect with modern technology.
Is a derived state always easy to detect?
No
Are ships easy to detect?
yes because they have their own magnetic fields due to which they can easily detect by the detecter
Is it easy or difficult to cure cancer?
difficult
Why are bolt holes always clearance holes?
Bolt holes are always clearance holes to allow for easy assembly and prevent binding or misalignment when inserting the bolt.
What is fasting difficult or easy?
its an easy task to do.
What is the opposite of the word difficult?
The answer is easy. I can't believe you didnt know that because for me it was easy get it? Easy! Ha hahahaha!
What is an antonym for difficult?
The opposite of difficult is easy or simple.
Was it easy or difficult during the japan earthquake?
difficult!
Is it easy to detect the F-35?
No. The F-35 is a stealth joint strike fighter jet and it is barely invisible to the radar. It is also really difficult for missiles to shoot down the F-35 fighter aircraft.
