evaluate 2/3 times 18
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A 1000 kg car is moving at 15 km/h. If a 2000kg truck has 18 times the kinetic energy of the car, how fast if the truck moving?
Consult Multiple-Concept Example 7 to see a model forsolvingthis type of problem. A concave makeup mirror is designed sothevirtual image it produces is 3 times the size of the objectwhenthe distance between the object and the mirror is 18 cm. Whatisthe radius of curvature of the mirror?
