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tigry1 [53]
2 years ago
8

Fossils remains of Cynognathus , a triassic land reptile, have been found at both South America And Africa . What does this impl

y?
A. these continents used to be connected and later moved apart
B . People can find really cool fossils in random locations
C . the Cynognathus reptile evolved independently on 2 separate continents
D . the Cynognathus is found on both continents because it swam across the ocean

Physics
1 answer:
klio [65]2 years ago
4 0
The answer is C for this.
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a positively charged body makes contact with a body. after a while, the charged body becomes neutralised. state 3 main condition
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Answer:

A body will become positively charged when some electrons will come out from the body.Thus, positive charge is due to deficiency of electrons.

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Nuclear energy is over ___ times stronger than the chemical bonds between the atoms
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Answer:

1 millions times stronger

8 0
2 years ago
Tyrone, an 85-kg teenager, runs off the end of a horizontal pier and lands on a free-floating 130-kg raft that was initially at
Ghella [55]

Answer:u=4.04 m/s

Explanation:

Given

Mass m=85 kg

mass of Raft M=130 kg

velocity of raft and man  v=1.6 m/s

Let initial speed of Tyrone is u

Conserving Momentum as there is no external Force

mu=(M+m)v

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u=\frac{215}{85}\cdot 1.6

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4 0
3 years ago
A train travels 70 kilometers in 1 hours, and then 63 kilometers in 2 hours. What is its average speed?
lozanna [386]
The answer is:  " 44 \frac{1}{3} km " ; 
                              or; write as:  " 44.333 km " .
___________________________________________________________
Explanation:
___________________________________________________________
(70 km + 63 km) ÷ (2 + 1 ) =  133 km ÷ 3 =  " 44 \frac{1}{3} km "  ; 
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___________________________________________________________
3 0
3 years ago
Why is an earthworm an invertebrate?
zimovet [89]

Earthworm have bones Some children confuse earthworms, which are invertebrates and have no bones, with snakes which are vertebrates and do have a bony skeleton and many ribs.

8 0
2 years ago
Read 2 more answers
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