Answer:
Explanation:
Given
No of atoms of hydrogen 
Temperature of room 
Thermal energy of the atoms is given by

where k=boltzmann constant


Hence the energy of the atoms is 
Answer: well we all orbit the sun all the planets do so the
SuN
Explanation: two words common sense
The Resistance is directly proportional to conductor length. Therefore 30% increase in wire length will increase the resistance by 30%.
Answer:
-0.105 m/s
Explanation:
Given that
Mass of the astronaut, m(a) = 68.5 kg
Mass of the tool, m(t) = 2.25 kg
Speed of the tool after it is thrown, v(t) = 3.20 m/s
We know that momentum of a particle,
p = mv
See the attachment for calculations
Therefore, the speed is 0.105 m/s and it moves in the opposite direction.