Using the graph above determine the acceleration for the object represented between 5.Os and 6.0 s. 21 m/s2
-21 m/s2
-7.0 m/s2
1.2 m/s2

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Ascientific blank must be testable and capable of being proven false?