Answer:
No, it is not necessary for them to have same mass.
Explanation:
Let both bodies have a density d1 and d2 respectively.
Since their volumes are equal V1 = V2
we know that,
density =
Hence, d1 = and d2 =
Taking the ratio of densities,we get
This implies that unless the bodies have same densities, the mass of the two bodies will not be same.
A) because the panda used force to break in half
Answer:
Part A: The current is shown in milliamps because the values of current in this circuit are very small.
Part B: The value of the current also increases when the voltage increases.
Part C: The value decreases When the resistance increases.
Explanation: First answer is straight from Edmentum/Plato. B, C are rewritten Hope it helped!
Answer:
The heat change of the system is 30 J.
Explanation:
Given;
increase in internal energy of a system, ΔU = 80 J
work done on the system, W = 50 J
The heat change of the system can be calculated from first law of Thermodynamics;
ΔU = Q - W
where;
Q is the heat absorbed by the system
W is the work done by the system (negative when work is done by the system and positive when work is done on the system)
Since work was done on the system the increase internal energy is given as;
ΔU = Q + W
ΔU - W = Q
80 J - 50 J = Q
30 J = Q
Therefore, the heat change of the system is 30 J.
Answer:
1) matter is anything made of atoms that has mass.
Explanation:
2) baking a cake
3) yes
4) going from a liquid to a gas