Answer:
You could claim that Pluto is a planet as it rotates around our sun.
Explanation:
Hope that helps :)
The snow or ice holds back the movement of the sled causing friction between them
Answer:
Answer is freezing point of water. The same melting point of ice is the same freezing point of water.
Answer:
Silicon-32
Explanation:
Silicon-32 is the isotope of silicon. It's half life is 153 years. It means that it takes 153 years to decay for half of a sample of Silicon atom which has 14 proton, 14 electron and 18 neutrons.
So, answer is Silicon-32.
Answer:
3117.914 m tall mountain
Explanation:
Chocolate bar gave him 2.2 Mega Joules energy
Gravitational Potential energy = mgh
now, if he store that energy entirely as gravitational potential energy then
mgh = 2.2×10^6
⇒ 72 × 9.8 × h = 2.2×10^6
⇒h = (2.2×10^6)/(72×9.8) = 3117.914 m