Answer
4
Step-by-step explanation:
Answer:
3053.63 un³
Step-by-step explanation:
Hello!
The diameter is 18, so the radius is half of the diameter, or 9.
Using the volume of a sphere formula: 
Solve:
- 3,053.6280592893 ≈ 3,053.63
The volume is 3053.63 un³.
Answer: t2 = 0.86 t1
0.286 seconds
Step-by-step explanation:
Given that the speed of the two skaters to be
S1 = 12 m/s
S2 = 14 m/s
Since it is a race, the distance covered will be the same. But of different time.
First Skater
Speed = distance/time
Let's assume that the distance covered when the second overtakes the first is d
12 = d/t1
d = 12t1
Since the time of both skaters are not given, let us assume that distance where the second skater overtakes the first is 4 metres. Therefore
t1 = 4/12 = 0.3333 second
Second skater
Speed = distance/ time
14 = 12t1/t2
t2 = 12t1/14
t2 = 0.86 t1
t2 = 0.86(0.333)
0.286 seconds
