Based on the description of Activity 7.2, which of these explains why the ball i

Question

Based on the description of Activity 7.2, which of these explains why the ball is accelerating? a. It is moving at constant speed b. It is moving at constant velocity c. It is continuously changing direction In the dynamic experiment, described in Activity 7.2.1, which force acting on the bob is providing the centripetal force? a. The weight of the bob b. The force of the spring c. The tension in the string holding up the bob a) In the static experiment described in Activity 7.2.2, draw the force force diagrams representing all forces acting on the bob and the hanging weight. b) What is the acceleration of the system in the static experiment? a. (T - mg)/m b. (T + mg)/M c. (T - mg)/(M + m) d. zero c) In the static experiment, what is the magnitude of the force exerted by the spring equal to? a. T + mg b. T - Mg c. mg d. (m + M) g Why do the densest particles end up at the bottom of the test tube after it is rotated in a centrifuge in Activity 7.3? a. they go around slower than the other particles b. they have the most inertia of all the particles c. their rotation periods are shorter than for the other particles

Explanation / Answer

(1). It continously changing direction.

Due to changing direction,the velocity is changes.Therefore accleration occured.

(2).Weight od the bob

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