The tallest roller coaster in the world is the Desperado in Nevada. A person riding the coaster drops a ball once they get to the top of the first hill which is 84.0 m high. What is the velocity of the ball when it hits the ground?

Object 1 is hotter.

Explanation:

Object 1 T=  

Object 2 T=0 K

Object 3 T=

Relation between Celcius ,Kelvin and Fahrenheit

K=C+273,  .

So now we will convert all in one unit.

Object 1 T=273 K

Object 2 T=0 K

Object 3 T=255.22 K

From above we can say that Object 2 is coolest and object 1 is hottest.

So  Object 1 is hotter.