Answer:
A 'kink' in the glass tube which breaks the mercury as it contracts, storing the highest temperature reading. The glass tube is shaped like a lens to magnify the thin mercury thread. Shaking the thermometer resets the mercury back into the bulb.
Answer: D. Infrared
Infrared is the best way to observe it.
Answer:
Explanation:
Information we have:
velocities:
initial velocity: 
(starts from rest)
final velocity: 
time: 
Since we need the answer in 
, we nees to convert the speed to meters per second:
We find the acceleration with the following formula:
substituting the known values:
the acceleration is 10.07
Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. It can either be kinetics or potential. In this problem you know it starting position so you can calculate it's potential energy (PE):
<span>PE=mass∗gravity∗height=0.3kg∗9.8m/s2∗1.8m=?
</span>The answer will typically be given in joules:
1J=kg∗m2s2 Could be wrong... But I believe it is 5.3...? as a final product.
