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lys-0071 [83]
4 years ago
7

The graph below shows the relationship between speed and time for two objects, A and B. Compare with the acceleration of object

B, the acceleration of object A is
A. Greater
B. The same
C. Lesser
D. One-third as less

Physics
2 answers:
Fiesta28 [93]4 years ago
7 0
Answer is C: Greater
kolbaska11 [484]4 years ago
5 0

Answer:

A) greater

Explanation:

acceleration is calculated by dividing velocity over time..so by calculating, you find acceleration of A is greater than that of B

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Answer:

d = 4180.3m

wavelengt of sound is 0.251m

Explanation:

Given that

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v=1485m/s

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an echo travels a distance equivalent to 2d, that is to and fro after it reflects from the obstacle.

velocity=\frac{distance}{time}\\\\ v=\frac{2d}{t} \\\\vt=2d\\\\d=\frac{vt}{2}

d=\frac{1485*5.63}{2}\\d= 4180.3m

wavelengt of sound is \lambda = v/f

= (1485)/(5920)

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