Answer:
Explanation:
Given
Diver is at a depth of inside the water
As we go down pressure increases due to the weight of liquid column above us
Pressure difference is given by
Where =density of liquid
h=depth
g=acceleration due to gravity
So external-internal pressure difference is
Explanation:
Two objects that only have the force of gravity acting on them, will fall with the same acceleration <span>g=9.8<span>m<span>s2</span></span>; g=32.2<span><span>ft</span><span>s2</span></span></span> and will therefore hit the ground at the same time.
When you drop a feather, air resistance acts on all the surfaces of the feather. This causes the feather to slow down.
Air resistance depends on two factors: the speed of the object (increased for example by throwing it), and its surface area.
hope this can give u a little bet more to know about how to get ur answer :P
have a gud day and gud luck!
You would do mass x distance which is 3.8 kg x 12m which equals A. 45.6 J.
Answer:
x = 58.86[mm]
Explanation:
This problem can be solved by means of Hooke's law which tells us that the force is equal to the product of the constant of the spring by the distance that is compressed or stretched. The following equation can be used.
where:
F = force or weight [N]
k = spring constant = 2*10⁵ [N/m]
x = distance compressed [m]
The weight can be calculated as the product of the mass by the gravity acceleration.
Now replacing in the Hook's law
As far as I remember, it usually takes more force to start an object sliding than it does to keep an object sliding because static friction is usually <span>greater </span>than sliding friction.