The answer is, "B", "Ammonia".
Answer: Infrared light
Explanation:
Infrared light is an electromagnetic radiation which has longer wavelength than visible light.
cool and faint objects are difficult to be detected using visible light.
Infrared light can pass through dust and clouds of gases. Thus, it is the best way to study the young stars hidden behind interstellar dust clouds.
Answer:
The tension in the rope is 262.88 N
Explanation:
Given:
Weight N
Length of rope m
Initial speed of ball
For finding the tension in the rope,
First find the mass of rod,
( )
kg
Tension in the rope is,
N
Therefore, the tension in the rope is 262.88 N
Answer:
velocity = distance / time taken
= 200/4
= 50 m/s
is the correct answer