Prob. # 4] A 1.75-kg particle moves as a function of time as follows: x- 4ces 1.33t + where distance is measured in meters and time in seconds. a) What are the amplitude, frequency, angular frequency, and period of this motion? B) What is the equation of the velocity of this particle? c) What is the equation of the acceleration of this particle? d) What is the spring constant? Draw the graph for displacement, Velocity, and acceleration for two periods.

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.