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

Answer:
Explanation:
Given
winning car accelerates with a and its final velocity is v
considering they both start from rest
time taken by winning car is
v=u+at
where u=initial velocity
a=acceleration
t=time


Now loosing car is accelerating with 
Distance traveled by loosing car in time t



Thus distance d traveled by loosing car is given by 
a). When the piano reaches terminal speed, it is no longer accelerating,
so the net force on it must be <em>zero</em>.
b). If the net force on the piano is zero, the upward force of air resistance on it
must be exactly equal to the downward force of gravity ... <em>10,000 N</em>.
Atoms from two different elements may have the same number of neutrons, but never the same number of protons. The number of protons is unique to the element and represents the atomic number.
Answer:
t=0.0625s
Explanation:
F=number of swings/time taken
DATA
Frequency=4.0Hz
number of swings from Q to R
=1/4
time taken=?
Frequency=number of swings/time taken
make t the subject of the formula
t=n/f
substitute the given date
t=0.25/4.0
t=0.0625s
option A is collect