Aperson jogs 4.0 km in 32 minutes , then 2.0km in 22 minutes and finally 1.0km in 16 minutes . what is the joggers average speed in km per minute?

Average speed is defined as ratio of total distance covered and  total time

now we will have

now total distance moved is

total time is given as

now average speed is given as

so its average speed is 0.1 km per minute

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j