7. Tungsten is a conductor, the rest listed are insulators.
8. Thermal Energy
Aluminum is 26.982 grams per mole, so 26.982/19.9 will give you the moles 1.3558794
They both have 1 electron in their valence shell.....
The location where the mercury level of the barometer would be the lowest is at the very high altitudes of the Earth's atmosphere (about 100 km), since air pressure decreases as altitude increases.
Answer: The correct option is B.
Explanation: To describe the motion of an object, we use the equations of motion.



From the above equations, we require position, speed and direction through which we an calculate the displacement, velocity and acceleration.
To calculate the complete motion of an object, we require all the three factors.
Hence, the correct option is B.