7.4 waves crash onto a beach every 58.3 s.
What is their frequency?
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 276km/h on a track with a total length of 1520m.
If a particular car covers the first half of the track at an average speed of 246km/h, what minimum average speed must it have in the second half of the event in order to qualify?/
Answer in units of km/h
1 answer
1 answer