The following that describes how outer space, air, and
glass affect the speed of light is that light travels fastest through outer space, it travels somewhat slower though
air, and of these three, it travels the slowest through glass. The answer is
letter B.
Answer:
The angular acceleration required is 0.1765 rad/ 
Explanation:
The radius of the bicycle wheel has a radius of 0.42 m.
The acceleration is for time, t = 6.8 seconds.
Initial angular velocity is given as 
= 5.5 rad/s
Final angular velocity is given as 
= 6.7 rad/s
Therefore from the formula for angular speed we get
= + (
t), where t is the time in seconds.
Therefore we get
6.7 = 5.5 + (6.8 × )
Therefore we get the angular acceleration, = 
The angular acceleration required is 0.1765 rad/
Answer:
B) Fluorine
Explanation:
The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element).
Answer:
Option C
Explanation:
When this type of situation occurs where the price falls and the sale of a product increases then a shift is observed in the supply curve towards right as a result of this shift there is a need to shift down the demand curve
Thus When supply curve is shifted to the right the demand curve is moved down accordingly.
