Density= population/area
area= 12 X 7 = 84 m^2
density= 168/84= 2 mice per m^2
power=voltsxamps=watts.
12=3xamps
4 amps
------------
A. To increase the current, decrease the resistance.
----------------
r=v/i = 53/7
Answer:the hare slept for 1 hr 55minutes.
Explanation: distance is changed to meters = 520m
Speed=distance/time
Speed of tortoise is 0.075m/s=520m/t
Crops multiplying t= 520/0.075 = 6933.3 seconds.
Speed for hare 16.7m/s =260m/t
ie 260m is half of the distance.
t =15.56seconds
Therefore the time slept by the hare = 6933.3- 15.56= 6917.74 seconds.
Converting to hours = 1hr. 55minutes is the time the hare slept.