If two objects have the same mass which object has more kinetic energy? The object going faster or the object going slower

Air flows upward in the wick of a lantern because of the liquid property called

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.