<em>Answer:</em>
Simple, there could be air in the package and volume would record that, whereas mass would count the mass of the cereal and discount the air.
Answer:
The answer to your question is Pe = 2452.5 J
Explanation:
Data
mass = 50 kg
height = 5 m
gravity = 9.81 m/s²
Process
The energy of this process is Potential energy which is proportional to the mass of the body, the gravity and the height of the body.
Pe = mgh
Substitution
Pe = (50)(5)(9.81)
Simplification
Pe = 2452.5 J
Lose electrons because they have a negative charge.
Answer:
Q = 231.6 J
Explanation:
Given that,
Mass, m = 3 g
The temperature rises from 20°C to 220°C.
We know that, the specific heat of copper is, c = 0.386 J/g K
We know that the energy transferred in heating of copper is given by :
So, the required energy is equal to 231.6 J.
1. Because if in an accident, they will get hurt and dangerous.
3. I think the middle seat because it’s safer from damages from the left and right