A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs?.

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Auser wants to add a thick, dark green border around a chart in powerpoint. the user can do this in chart tools by choosing what

Which specimen would best be viewed using a compound light microscope?