Question

science please answer me​

Answer 1

Answer:

ans a) 80kmph

ans b) because dust can cause problem in function of computer

Explanation:

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Answer 2

Explanation:

1. we know,

speed = distance/time

=240km/3h

=80km/h

2. He gave such instructions to her so that dust doesnt get deposited on her keyboard and monitor. if dust gets deposit ed than there s a chance that her keyboard may get jammed or her monitor may not work