<span>141.6 million mi,and idk what u mean by how</span>
It can be described as <span>a pure substance and an element. </span>
Lithium shares more properties with Sodium, because they have the same number of valence electrons (one). Choice 1 is correct. Hope this helps!
New evidence may support the theory -> then nothing
New evidence conflicts with the theory => rework theory / create a new one
Answer:
Explanation:
Given
mass m collides elastically with floor and jump to its original height I .e.velocity of rebound is same as the initial velocity
Impulse imparted by steel ball to the ground is given by the change in momentum of steel ball

and impulse is product of average force and time
so we need time to calculate the average force. So, option e is correct