Answer: i think thats the answer
≈
40.8
kg
Explanation:
Well, assuming the boy is on Earth, then the gravitational acceleration is approximately
9.8
m/s
2
.
So, we get:
m
=
W
g
=
400
N
9.8
m/s
2
≈
40.8
kgExplanation:
Mass
Explanation:
They physical property that is not the same among the four objects is their masses.
Mass is the amount of matter contained in a substance.
- Specific heat is the amount of energy needed to raise the temperature of 1g of a substance by 1k.
- Since the materials are made of the same metal, they have the same specific heat.
- They will also have the same magnetism and electrical conductivity.
- These properties are intensive property and do not depend on the amount of matter present.
- Mass is an extensive property that depends on the amount of matter present.
learn more:
Physical property brainly.com/question/5881840
#learnwithBrainly
The energy stored in motion is called kinetic energy.
The answer is C in this question.
