Answer:
Bouyancy
Explanation:
Bouyancy occurs when the upthrust exerted on an object is equal to the weight of object displaced. It is mostly applicable to low density objects for example balloon. When balloon is displaced in water, it floats. This is due to the effect of the upthrust acting on the balloon which allows the balloon to float and which is opposite the weight.
Note that the weight acts downwards the object while the upthrust always acts opposite (upward)
The molecules of the water do not change, because you have not added any other chemicals. that’s why water does not change it just only that liquid water is more dense than solid water (ice) ice is less dense.
Answer:
427.196 m
Explanation:
u = Initial velocity = 312 m/s
t = Time = 1.4 s
s = Displacement
a = -9.8 m/s² (because the bullet is decelerating as the bullet is going straight up)
Equation of motion
So, Displacement at 1.4 seconds is 427.196 m
Answer:
14.17545 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
The time the ball required to go up is half of the time the ball bounces straight up and returns to the floor. It is same for the ball going down.
Maximum height of the ball is 14.17545 m