1. One
2. Oohm
Hope this helps
Answer:
2s
Explanation:
Given parameters:
Distance = 30m
Speed = 15m/s
Unknown:
Time before Laurence caught it = ?
Solution:
To solve this problem;
Speed =
Time taken =
=
= 2s
The time it takes is 2s
Answer:28 m
Explanation:
Given
Direction is
North of east i.e.
with x axis
Also ball moved by 33 m
therefore its east component is 33cos58=17.48 m
Northward component 
The unit is light years or Ly
Answer:
The primary reason of seeing the cracker burst and hearing the sound later is because the speed of sound and light. Speed of light is in the vicinity of 3*10^8m,/ sec while the speed of sound is at a distance of 332m/sec. It is similar to lightning that strikes before the sound.
hope this helped you
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