Definition of artficial and natural radioactivity
2 answers:
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Answer:
Explanation:
Given
height of grand canyon is
Rock is dropped i.e. initial velocity is zero
Using Equation of motion
h=height
u=initial velocity
a=acceleration
t=time
here a=acceleration due to gravity
Answer:
The linear velocity is
Explanation:
According to the law of conservation of energy
The potential energy possessed by the hoop at the top of the inclined plane is converted to the kinetic energy at the foot of the inclined plane
The kinetic energy can be mathematically represented as
Where is the moment of inertia possessed by the hoop which is mathematically represented as
Here R is the radius of the hoop
is the angular velocity which the hoop has at the bottom of the lower part of the inclined plane which is mathematically represented as
Where v linear speed of the hoop's center of mass just as the hoop leaves the incline and rolls onto a horizontal surface
Now expressing the above statement mathematically
=>
=>
=>
=>
Substituting values