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Len [333]
3 years ago
13

An object has a mass of 20 g and a volume of 5 cm3. what is the object's density? 4 g/cm3 100 g/cm3 0.25 g/cm3

Physics
1 answer:
Sati [7]3 years ago
8 0
The answer is 110 g/cm3
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Levers pivot on the<br> A. fulcrum<br> B. resistance arm<br> C. effort arm<br> D.moon
AVprozaik [17]

Answer: it’s A

Explanation: hope this is right!!!!

6 0
3 years ago
a) A Kuiper Belt Object orbits the Sun with an average orbital distance of 40 AU. What is its orbital period? Round your answer
denpristay [2]

Answer:

253 years

Explanation:

a = Distance in Astronomical units from the sun = 40 AU

P = Orbital period in years

From Kepler's law we have

P^2=a^3

\Rightarrow P^2=40^3

\Rightarrow P^2=64000

\Rightarrow P=\sqrt{64000}

\Rightarrow P=252.982212813

\Rightarrow P\approx 253\ years

The orbital period of the Kuiper belt object is 253 years.

7 0
3 years ago
Which example is a body fossil? a) dino bones b) shrimp burrow c)dino footprint d)an ornithopod track
Harrizon [31]

Answer:

The hard structure like dino bones, teeth and shells are the examples of body fossils.

Option: A

<u>Explanation: </u>

The body fossils are common type of fossils found in the world. <em>These body fossils are formed by the remains of the ‘dead animals and plants’.</em> The body fossils are <em>hard parts of the dino teeth, bones, shells, woody trunks, branches, and stems.</em> The body fossils are formed in different ways and they are the remains of <em>the body parts of ancient animals, plants and other life forms.</em>

<em>They are rarely found in connected nature and are like large vertebrates like dinosaur bones, skulls and teeth’s. </em> The body fossils are also formed in different ways they are formed like a plants or animals dies in a watery environment and they can be buried in mud or silt they cannot decompose.

They build the top and hardens into the rocks at over time sedimentation.  Two types of tissues are decomposed, they are soft and hard tissues.in the decomposition of there leaving hard bones, shells and teeth’s are behind and soft tissues are quickly decomposes.

7 0
3 years ago
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What are the results of habitat loss? choose the most likely outcome
zmey [24]
The Answer that makes the most sense is C.
5 0
2 years ago
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19. A 0.0340 kg bullet traveling at 120 m/s embeds itself in a 1.24 kg wooden block which
Blababa [14]

Answer: x ≈ 36.3 cm

Explanation:

Conservation of momentum during the collision

0.0340(120) + 1.24(0) = (0.0340 + 1.24) v

v = 3.2025 m/s

The kinetic energy of the block/bullet mass will convert to spring potential

½kx² = ½mv²

x = √(mv²/k)

x = √(1.274(3.2025²) / 99.0)

x = 0.363293... ≈ 36.3 cm

3 0
3 years ago
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