What materials can a arch bridge be made of?
2 answers:
Answer:
Stone, brick,
Explanation:
Masonry, concrete, wrought iron, cast iron, timber, structural steel.
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Answer:
subtract the answer it'll get you that.
Explanation:
D. 2- youre adding two negative charges to a neutral element
The mass isnt relevant
520 - 120 = 400
400 / 8 = 50
50ms^-2
Answer: its 3
Explanation: