To solve this problem it is necessary to use the conservation equations of both kinetic, rotational and potential energy.
By definition we know that

Where,
KE =Kinetic Energy
KR = Rotational Kinetic Energy
PE = Potential Energy
In this way

Where,
m = mass
v= Velocity
I = Moment of Inertia
Angular velocity
g = Gravity
h = Height
We know as well that
for velocity (v) and Radius (r)
Therefore replacing we have

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Therefore the height must be 0.3915 for the yo-yo fall has a linear speed of 0.75m/s
Scientists believe that um the big bang created the earth
Answer:
A.They alternately compress and pull apart the particles in matter.
B. They are the first waves detected after an earthquake.
Explanation:
P-waves, also known as a compressional wave is the wave that shakes the ground in the same and opposite direction of the wave i.e. back and forthe motion of the ground. They compress and pull apart the material alternatively. The disturbances due to these waves have small magnitude thus making them non destructive. These waves travel at faster speed as compared to other seismic waves and thus help in detecting the earthquake. These wave can travel through liquid, solid and gases.
I would think both because you cannot predict what will happen because it is unbalanced you are basically letting the earth take control of the object.
hope that helped?!
:)
Answer:
the image is -38.7 cm from the lens
Explanation:
We use the lens equation which says

where
is the distance to the object,
is the distance to the image, and
is the focal length.
Now, in our case
,
,
;
therefore,



where the negative sign indicates that the image is virtual and on the same side of the lens as the object.