At the top of the mountain, when he tightens the cap onto the bottole, there is some water and some air inside the bottle. Then he brings the bottle down to the base of the mountain.
The pressure on the outside of the bottle is greater than it was when he put the cap on. If anything could get out of the bottlde, it would. But it can't . . . the cap is on too tight. So all the water and all the air has to stay inside, and anything that can get squished into a smaller space has to get squished into a smaller space.
The water is pretty much unsquishable.
Biut the air in there can be <em>COMPRESSED</em>. The air gets squished into a smaller space, and the bottle wrinkles in slightly.
Answer:
Speed of the wreck after the collision is 65 km/h
Explanation:
When a car hits truck and sticks together, the collision would be totally inelastic. Since the both the vehicles locked together, they have the same final velocity.
Mass of car 
Mass of truck 
Initial speed of the car 
Initial speed of the truck 
The final velocity of the wreck will be
since final speed are same, 
Answer:
Explanation:
The equation for the linear impulse is as follows:
where 
is impulse, 
is the force, and 
is the change in time.
The force, according to Newton's second law:
and since 
the force will be:
replacing in the equation for impulse:
we see that is canceled, so
And according to the problem 
, 
and the mass of the passenger is 
. Thus:
the magnitude of the linear impulse experienced the passenger is 
Answer:
Increasing its mass to three times its original value.
Explanation:
Answer:
It can decrease your risk of injury
Explanation:
Running well can make sure you don't get hurt.
:))
