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attashe74 [19]
2 years ago
6

Africa has _____ countries.

Physics
2 answers:
Aliun [14]2 years ago
3 0

According to the United Nations, there are <em>54 </em>countries in Africa today (late 2018).

Nutka1998 [239]2 years ago
3 0

Answer:56

Explanation:count them

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While traveling along a highway a driver slows from 34 m/s to 17 m/s in 6 seconds. What is the automobiles acceleration?​
xxTIMURxx [149]

Answer:

-2.83 m/s²

Explanation:

  • Initial velocity (u) = 34 m/s
  • Final velocity (v) = 17 m/s
  • Time taken (t) = 6 seconds

❖ Acceleration is defined as the rate of change in velocity with time.

→ a = (v - u)/t

  • v denotes final velocity
  • a denotes acceleration
  • u denotes initial velocity
  • t denotes time

→ a = (17 - 34)/6 m/s²

→ a = -17/6 m/s²

<h3>→ Acceleration = -2.83 m/s²</h3>

(Minus sign implies that the velocity is decreasing.)

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3 years ago
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3 years ago
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work relationship built on trust.

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What is meant by the statement '' density of water is 1000 kilograms per cubic metre ''?
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