The most probable reason why the magnets won't stick on the refrigerator is that the body of the refrigerator and the magnets have like poles. If both have negative or both have positive poles facing each other, they will repel. In principle, magnets are attracted to opposite poles and like poles repel.
It's usually taken from <span>400 to 700 nm.</span>
Answer:
The no. of revolutions does the tub turn while it is in motion is = 52.51 revolutions
Explanation:
Given data
= 0
= 5 
Time taken = 7 sec
(1). The angular acceleration is given by



We know that from the equation of motion


-------- (1)
(2). The angular acceleration is given by


- 0.357 
We know that from the equation of motion


= 35.01 rev ------- (2)
Total no of revolution made by the machine is

17.5 + 35.01
52.51 rev
Therefore the no. of revolutions does the tub turn while it is in motion is = 52.51 rev
because the building are weaker and they are most likley to fall