Bernie was 78 meters away from his car after shopping. It took him 13 seconds to push a shopping cart one-third of the way directly to his car at a constant velocity. What was his velocity while he was pushing the cart?

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

gravitational energy

electrical energy

kinetic energy

ligh energy