A 1.2 kg skateboard is coasting along the sidewalk at a speed of 5.0 m/s when a 800 g. cat jumps down from a tree(no horizontal motion) onto the skateboard. What is the speed of the cat after the collision? a 3.2 m/s
b 0.3 m/s
c .03 m/s
d 3.0 m/s

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root word, prefixes, and suffixes

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

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