Answer:
Option (B)
Explanation:
Light is a form of electro-magnetic waves. This light wave has distinct range of wavelength that allows it to form different colors of light. This means that the color of the light produces depending on the amount of wavelength it comprises.
The visible light ranges from Violet to Red, and this is observed as different colors when each of these electromagnetic waves strikes our eyes at a certain angle. The violet light has the shortest wavelength of about 410 nm, where the red light has the highest wavelength of about 650 nm.
Thus, the correct answer is option (B).
Answer:
a) 17.97 m/s
b) 16.5 m
Explanation:
The total distance that she runs is twice the distance between her and the table, which is 5.5 * 2 = 11m
So the time she would need to run that distance at a rate of 3m/s is
t = 11/3 = 3.67s
This is also the time it takes for the ball to be thrown up and down, which is twice the time it needs to reach the top, its maximum height at v = 0 m/s
So the time for the ball to reach maximum height is 3.67 / 2 = 1.83 s
Let g = 9.8m/s2. For the ball to get to 0 within 1.83s at the deceleration of 9.8m/s. Its initial speed must be
v = gt = 9.8*1.83 = 17.97 m/s
As she reaches the table within half of the total time (3.67 /2 = 1.83s), the position of the ball would be
Carl Sagan and biologist Harold Morowitz
N2O is nitrous oxide becuase of the nitrogen and oxygen
there would be atleast 24 moles of air not counting the irreplacable ones
hope this helped