Hilda plans to display in a clear cube the needle betsy ross used to sew the first american flag. the needle will fit exactly as
2 answers:
Based on the length of side of the cube given, the length of the needle is 2.28 inches.
<h3>What is the length of the needle?</h3>The length of the side of a cube and its diagonal are related by the formula below:
where s is length of side
Therefore, the length of the needle is 2.28 inches
Learn more about length of diagonal of cube at: brainly.com/question/800212
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Answer:
– 2.5 m/s²
Explanation:
We have,
• Initial velocity, u = 180 km/h = 50 m/s
• Final velocity, v = 0 m/s (it stops)
• Time taken, t = 20 seconds
We have to find acceleration, a.
a = (v ― u)/t
a = (0 – 50)/20 m/s²
a = –50/20 m/s²
a = – 5/2 m/s²
a = – 2.5 m/s² (Velocity is decreasing) [Answer]