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A student designs a clock using a mass and a spring. Each oscillation of the mass advances the clock by one second. When the student builds the clock, he discovers he erred and each oscillation takes two seconds. What change can he make to fix the clock?

A simple pendulum consists of a mass M attached to a weightless string of length L. For this system, when undergoing small oscillations

The simple harmonic motion of an object is shown in the figure below. What is the position of the object as a function of time? Qz10_SHM.png

Make the best match between ideas and philosophers.

Rules that on their face appear to be reasonable are known as __________ rules.

Immanuel Kant argued that a categorical imperative should be obeyed only by people in the same category, such as “all bosses” or “all employees.”

Teleological is a term used to define ________ ethical thinking.

How does the perception process (the process of attending to, organizing, and interpreting the information received through our senses) influence how we perceive others in both positive and negative lights? How does the perception process influence how we perceive ourselves and how we talk about ourself to others in both positive and negative lights? And how can we use and overcome errors in person-perception biases (selective perception, stereotyping, halo effects, forced consistency, projection, fundamental attribution error) to improve our social perceptions (more realistic impression of others and validity assessment of your perceptions)? *I provided definitions for the underlined words in the parentheses to aid understanding.

The figure shows a rod bent into a semicircle of radius R on the xy-plane. Semicircle.png What is the position of the center-of-mass of this object? 

An ideal pendulum has a period of 1.0 seconds when it is placed in the lobby of the science building. A student takes the pendulum into an elevator and the elevator accelerates downward at a rate of 2.0 m/s2. What happens to the period of the pendulum?