The third choice.
The driver wants to see the object that is behind him. The light reflects off the mirror into the eyes of the driver portraying the object behind him
Answer:
Explanation:
Given that,
The length of a simple pendulum, l = 2.2 m
The time period of oscillations, T = 4.8 s
We need to find the surface gravity of the planet. The time period of the planet is given by the relation as follows :
Put all the values,
So, the value of the surface gravity of the planet is equal to 
.
Velocity is 6.9 x 1.5 = 10.35 m/s due South
Answer:
(a) True
Explanation:
A supernova is a powerful light explosion that occurs in massive stars.
During a supernova, the star releases very large amounts of energy as well as neutrons, which allows elements heavier than iron, such as silver, uranium and lead, to be produced.
Therefore, the correct option is "a" True
Elements more massive than iron (e.g. silver, uranium and lead) are created from supernova events.
