Answer:
51,882 J
Explanation:
In order to convert the heat from calories to joule, we must remember the conversion factor:
1 cal = 4.184 J
Keeping in mind this, we can set up a proportion to find how much Joules correspond to 12,400 calories:

The Battle of the Bulge in the winter of 1944 was the last Great German offensive of the Second World War.
Answer:

Explanation:
Absolute zero in the Kelvin scale = -273.15 °C
Temperature difference in the boiling and freezing point

Change in 21.5°C = Change of 100°C in M

Difference in the Celsius scale

Change in
corresponds to

Therefore the absolute zero in the Methane scale is

Radial acceleration is given by

where

then

Now

Using the relation


Putting into rpm
F = normal force by each board on each side
W = weight of the board in between acting in down direction = 95.5 N
f = frictional force in upward direction by each board
= coefficient of friction = 0.663
Using equilibrium of force in Upward direction
f + f = W
f = W/2
f = 95.5/2 = 47.75 N
frictional force is given as
f =
F
47.75 = (0.663) F
F = 72.02 N