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RideAnS [48]
4 years ago
15

Which of the following units would be the most appropriate for measuring the mass of a paper clip? A. grams B. milligrams C. cen

tigrams D. kilograms
Physics
2 answers:
Kitty [74]4 years ago
7 0

Answer: Grams

Explanation: In the metric system, masses are measured using grams as the base unit. Prefixes can then be added to the base unit when appropriate.

Feliz [49]4 years ago
4 0

For this case we have that a paper clip is a very small object, to be taken in the hand we feel that its mass is very small, almost imperceptible.

For this reason we can discard option D and option A.

Being so small we can use the milligrams to measure its mass, it is the smallest scale.

Answer:

Option B

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A single conservative force acts on a 5.30-kg particle within a system due to its interaction with the rest of the system. The e
cupoosta [38]

Answer:

Given that

m = 5.3 kg

Fx = 2x + 4

We know that work done by force F given as

w= ∫ F. dx

a)

Given that x=1.08 m to x=6.5 m

Fx = 2x + 4

w= ∫ F. dx

w=\int_{1.08}^{6.5}(2x+4) .dx

w=\left [x^2+4x \right ]_{1.08}^{6.5}

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w=62.7 J

b)

We know that potential energy given as

F=-\dfrac{dU}{dx}

∫ dU =  -∫F.dx           ( w= ∫ F. dx)

ΔU= -62.7 J

c)

We know that form work power energy theorem

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8 0
3 years ago
PLEASE ANSWER ASAP I REALLY NEED HELP!!!!!!
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Answer:

In thermodynamics, heat is transferred energy that moves between substances or systems because of their temperature difference. According to the first law of thermodynamic and the law of energy conversion s a form of energy, heat is cannot be created or destroyed only moves from one form to other.

The stone gets heat energy from fire and moves this heat energy or thermal energy to water as it cools off and the water warms up. Heat moves or is transferred spontaneously from the hot stone into the cold water. Eventually, the stone and water have the same temperature and water becomes heated. At the time of heat flowing out of the stone into the water, the heat energy became less ordered, due to spreading out through both the stone and the water. This is a net increase in entropy which is the second law of entropy.

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mamaluj [8]

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