Question

19. If the thunder is heard by a man 4 seconds after the lightening is seen. How far is the
lightening from man? (Speed of sound in air is 330m/s and speed of light is 3 x 108 m/s).
1) 1420 m
2) 660 m
3) 1230 m
4) 330 m
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Answer 1

Answer:

1420m

Explanation:

computer system is a set of integrated devices that input, output, process, and store data and information. Computer systems are currently built around at least one digital processing device. There are five main hardware components in a computer system: Input, Processing, Storage, Output and Communication devices

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Answer 2

the choices are wrong but the correct answer is 1320 m

Explanation:

multiply 330 by 4