Physics, 04.12.2019 05:31, only1cache

What two types of waves are used to detect black holes

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Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. These X-rays can be detected from Earth.

Explanation:

answered: powerprefection4114

X rays and gamma rays

Explanation: X rays emitted by the materials falling on the black holes and change the form because of very high temperature. These rays can be detected by using a specialized telescope.

Black holes also have very intensive effects on the neighbohoods around tehm by emitting very powerful gamma rays. These rays influence the nearby stars by devouring and spurring the growth of new stars.

answered: Guest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

answered: Guest

Letter a, because when there are unlike charges they will always attract to each other.

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What two types of waves are used to detect black holes...