1) KE=1/2*m*v^2
1/2*45*40^2
KE=36,000J
2) PE=mgh
45*9.81*30
PE=13243.5J
The answer is holes in leaves that were made by insects
Speed= distance/time
Answer=
1,800 kilometers/hour
False , inertia is the tendency of a object to not change their state. I have no idea how the orbit around the sun got mixed up in there ....
False the North Star never changes it position
