We will use formula for the orbital velocity of Venus, which is v = 35.02 km/s.
An average distance to the Sun ( In kilometers ) is:
R = 0.723 * 149,579,871 km= 108,150,260 km.
Than we will calculate the orbital period ( T ).
v = 2 π R / T
T = 2 π R / v
T = 2 * 3.14 * 108,150,260 km / 126,072 km/s
T = 5389.75 s ≈ <span>224.5 days
The orbital period of Venus is approximately 224.5 days.</span>
I believe the answer would be that the system potential energy will increase; while the Mar's angular momentum will remain the same.
Mars rotates on its axis, completing one revolution every 24.6 hours. The axis of mars is tilted at 25 degrees and 12 minutes relative to its orbital plane about the Sun. This produces seasons on the surfaces of Mars, similar to the seasons on Earth.
False, it would actually increase. Plants absorb carbon dioxide for photosynthesis
Answer:
Second ball
Explanation:
When a ball is thrown up with a certain velocity when the object reaches the same point from where it was thrown the velocity of the object becomes equal to the velocity with which the ball was thrown.
First ball

Second ball

Third ball

From the equations above it can be seen that the second ball will have the highest velocity when it hits the ground.
So, 
Assume the acceleration due to gravity is approximately 9.8 m/s^2
In 1 second, it will fall
s = ut + at^2/2
u = initial vertical velocity = 0
a = 9.8
t = 1
s is the distance it falls
= 9.8/2 = 4.9 m
But the parcel has a horizontal velocity of 1 m/s so it will travel 1 m horizontally in 1 second.
The answer would be
1 metre, 4.9 metres.