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juin [17]
2 years ago
8

Which of the following relationships determines an object’s ability to float in a liquid?

Physics
1 answer:
azamat2 years ago
7 0

Answer:

C

Explanation:

The density is what determines if it will float. Lower densities float, while higher densities sink. Density takes mass and volume into account.

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How much heat is needed to boil 120 kg of water ?
nekit [7.7K]
Q = mc<span>∆t, where:
q = energy flow
m = mass, 120 000 g
c = specific heat capacity, 4.81 J/gC
</span><span>∆t = change in temperature, ~75 (100 - 25, which is room temperature)

Substituting in the values, we get:
q = 120000 x 4.81 x 75 = 43290000 Joules = 43.29 MJ

Hope I helped!! xx


</span>
7 0
2 years ago
Before the big bang, the universe was much ____ and _____ than it is now.
Dahasolnce [82]
The answer to the question is that before the big bang, the universe was much hotter and more dense than it is now. Letter B.
It is because after the big bag occurred, the universe became cooler and less dense.
a. - does not correspond in the answer because the universe became less dense after the big bang.
c - the universe became cool and less dense after the big bang so being cool and less dense does not correspond to the question.
d - cooler does not answer the question because it only became cooler after the big bang.
5 0
3 years ago
Read 2 more answers
Un movil avanza a 20 m/s y recorre una distancia de 800 km. Determinar el tiempo en horas que utiliza
Nataly_w [17]

Answer:

t = 11.1 hours

Explanation:

The question says that, "A mobile advances at 20 m / s and travels a distance of 800 km. Determine the time in hours you use".

Given that,

Speed of a mobile, v = 20 m/s = 72 km/h

Distance, d = 800 km

We know that,

Speed = distance/time

So,

t=\dfrac{d}{v}\\\\t=\dfrac{800}{72}\\\\t=11.1\ h

So, it will take 11.1 hours.

7 0
3 years ago
Due to the earth's rotation, a person would be traveling faster at the equator than they would at a position halfway from the eq
Kisachek [45]

Answer:

False

Explanation:

It is actually the exact opposite.

8 0
2 years ago
Read 2 more answers
Maggie participated in a race. She ran 100 meters west and then turned back and ran to the starting line to complete the race. M
earnstyle [38]
Her total distance was 200 meters, since she ran 100 meters west and the same 100 meters back. This gives an average speed of 200 m / 40 s = 5 m/s.

However, her displacement was 0, since she ended at the same place she began, therefore, her average velocity is 0 / 40 s = 0.
3 0
3 years ago
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