Answer:
A.The objects must be different temperatures and they must be in contact.
Explanation:
Answer:
It should be option B polarization
Answer:
Acceleration, 
Explanation:
We are given with a velocity-time graph of an object that starts from origin. y axis is velocity and x-axis is time.
The slope of velocity-time graph gives acceleration of an object. Taking the slope of this graph.

So, the acceleration of the object is
.
Answer:
look on google i had to do the same thing i look in google
Explanation: