Answer:
barred spiral galaxy
Explanation:
There exist various forms of galaxies which include barred spiral, spiral, irregular and elliptical galaxies.
The galaxy we live in, the milky way galaxy i structured in the form of a spiral with bars located within it hence its a barred spiral galaxy. It is composed of six parts which includes the nucleus,a disk, spiral arms, central bulge, sphere and a halo.The components interact with each other.At the center of the milky way galaxy resides a massive black-hole called Sagittarius.
The speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer: Option 2
<u>Explanation:</u>
Whenever electrons are made to be incident on any anode, they will be interacting with the surface atoms of anode. So these interaction will lead to excitation of electrons of the surface atoms of the anode.
Thus when the excited electron will come back to ground state, it will emit x-rays. Thus, on increasing the speed of the striking electrons, it will gain the property of interacting with larger amount of surface atoms leading to increase in the emission of X-rays .
Thus, this increase in the emission of X-rays will lead to increase in the density of X-ray. So the speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer:
50.2 meters
Explanation:
When an object falls, it goes a distance d in time t according to the formula:

d is the distance in meter, g is the acceleration due to gravity with the value of 9.8
, t is the time in seconds
Therefore, 
d= 50.176 ≈ 50.2m