Answer:
0.19 rev
Explanation:
We can solve the problem by using the law of conservation of angular momentum. In fact, if we assume there are no external torques acting on the diver, the angular momentum must be conserved:

where
L is the angular momentum
I is the moment of inertia
is the angular velocity
- When the diver is tucked,
is her moment of inertia
She makes 2 revolutions (so,
) in t = 1.0 s, so her angular velocity is

So her angular momentum is

- When the diver is not tucked,
The angular momentum is conserved, so 
the moment of inertia is 
So the angular velocity is

So in a time of t = 1.5 s, the angular displacement is

Converting into revolutions,


Metals and properties of metals.
Answer: 90 meters
Explanation: 60/20=3 and 3*30=90 so it is 90 meters.
Answer:
1.water evaporates from the sea
2.water rises in warm air
3.water vapor is cooled and form clouds
4.clouds move and water falls on land as rain
5water travels along a rive to the sea
Explanation:
and that is how the water cycle works
Answer:
51,882 J
Explanation:
In order to convert the heat from calories to joule, we must remember the conversion factor:
1 cal = 4.184 J
Keeping in mind this, we can set up a proportion to find how much Joules correspond to 12,400 calories:
