Answer:

Explanation:
First, the instant associated to the angular displacement is:

Roots of the second-order polynomial are:

Only the first root is physically reasonable.
The angular velocity is obtained by deriving the angular displacement function:


The angular acceleration is obtained by deriving the previous function:

The resultant linear acceleration on the rim of the disk is:






Answer:
in what context?
Explanation:
thermal resistivity is the property of an object to resist transmission of heat.
electrical resistivity is the property of an object to resist transmission of electricity.
Answer:
Melting and frezzing are physical changes
There's the acceleration of the car that provides a force and the normal force of the seat cushion which pushes upwards against the passenger
Answer:
a= -0.83m\s^2
Explanation:
a = v \ t
a = -25 \ 30 = -0.833 m\s^2
the object is slowing down 0.83 meter every second