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MAXImum [283]
3 years ago
6

What is the density of a 15g block of metal with a volume of 2cm3?

Physics
2 answers:
UkoKoshka [18]3 years ago
5 0

Answer: Density = 7.5 g / cm³

Explanation: Density is the ratio between mass and volume.

D= m / V

= 15 g / 2 cm³

= 7.5 g / cm³

JulsSmile [24]3 years ago
4 0

Answer:

density =mass/volume

Explanation:

density=15/2

density=7.5 g/cm³

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The density of water is 1000kg/m3 and the density of ice is 900kg/m3. When 0.050 m3 of water is frozen, what will be the new vol
Bingel [31]
Sorry if this answer is a bit late...

We know that the volume of the water is 0.5 cube meters.

The density of water is 1.000 g/m^3 (that's the real density of water... maybe typos?)

The density of ice is 0.900 g/m^3 (that's the approximate density of ice)

First, let's multiply the volume of water by the density of the water to get the mass, since we know that the mass does not change with the ice gets frozen.

0.5 * 1.000 = 0.500 g

Now, let's divide that by the density of ice to get the volume of the ice.

0.500 / 0.900 = 5/9 cube meters

≈ 0.556 cube meters.

The volume of the ice is 5/9 or 0.556 cube meters.

Have an awesome day! :)
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2 years ago
What is the difference between an observation and an inference?
Vinvika [58]

Explanation:

observation is something what you could observe from your organs like eyes ears etc and also it is what you observed during an event for an experiment but inference is what you decide to do after observation or an event.

the act of inferring (to derive by reasoning). Observation = an act or instance of noticing or perceiving.

Thank u!

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3 years ago
A bear fells from 10m long grass <br> From where the bear is
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He from the 10m long grass
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A piece of putty and a tennis ball with the same mass are thrown against a wall with the same velocity. Which object experiences
cluponka [151]

Answer:

Explanation:

Firstly, we have to define momentum.

Momentum is define as the product of mass and velocity.

That is P = mass×velocity

Also considering the third law of motion which states that: For every action, there is equal and opposite reaction.

Moreso, considering the 2nd law of motion which states that the rate of change in the momentum of a body is equal to the applied force and takes place in the direction of the applied force.

Now, applying P = mass×velocity

They both have same mass and velocity definitely, they will both experience same momentum.

Also from the question, the both share same velocity hence, the will both hit the wall with same velocity meaning the will both feel the same impact from the wall as well. Hence the third law of motion proves this right.

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IgorLugansk [536]

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Explanation:

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