Explanation:
The life span of a star is quite as many more than 10 billion years. During these many years it would pass through different stages of its life, from nebula to ( perhaps, the current stage) supernova to neutron star or Black Hole.
The stages of the life of star over a span of 13 billion year can be summarized as
the transition stages are
Nebula
→
Blue star
→
Blue-white super-giant star
→
Supernova
→
Neutron star
→Black Hole.
Answer: Medium
Explanation: A medium is a substance through which a wave can pass. It can either be a solid, liquid or gas.
Answer:
D. No, because the student needs to know the direction that the force is applied
Explanation:
The change in momentum depends on the direction of the force as well as its magnitude. Since the graph only supplies force magnitude information, it is insufficient to allow the student to calculate the change in momentum.
Pretty sure answer is <span>[He] 2s2 2p1</span>