Answer:
a. a black hole
Explanation:
X-ray emission from the central degrees of the Milky Way Bright X-ray emission traces the coherent edge brightened shell-like feature, dubbed the northern chimney, located north of Sgr A* and characterized by a diameter of about 160 pc. On the opposite side, the southern chimney appears as a bright linear feature. Bright X-ray emission is observed at high latitude
Purpose of the BATTERY is to provide energy in order to allow current to flow
Purpose of the BULB is to light up once electrons pass through it
Purpose of OPEN SWITCH is to stop current flowing all the way around the circuit
Answer:
wave height ( H)
Explanation:
it is the total summation of crest and trough