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A potter's wheel is rotating at 3.2 rad/s in a counterclockwise direction when the potter turns it off and lets it slow to a stop This takes 26 seconds. What is the average angular acceleration of the wheel during this time?
A flask is filled with 1.51 L (L = liter) of a liquid at 98.8 °C. When the liquid is cooled to 15.6 °C, What is the coefficient of volume expansion of the liquid
A block of mass m = 4 kg slides back and forth on a frictionless horizontal track. It is attached to a spring with a relaxed length of L = 4 m, By what length is the spring extended
What are the possible value for of n and m if a) l = 1, b) l = 4, and c) l = 0 ? compute the normalization constant for the wave function
A red laser, with a wavelength of 640 nm, shines on a diffraction grating with a grating spacing of 500 lines/mm. The resulting diffraction pattern is observed on a screen 1.00 meters away from the grating.
A battery with an emf of 12.0 V shows a terminal voltage of 11.5V when operating in a circuit with two lightbulbs rated at 3.0 W, What is the battery's internal resistance
Two loudspeaker, 4.0 m apart and facing each other, play identical sounds of the same frequency. You stand halfway between them, where there is a max. of sound intensity. moving from this point toward one of the speakers, you encounter a min. of s..
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, What is the increase in the entropy of the universe
A uranium nucleus with a charge of 92e can spontaneously decay into a thorium nucleus of charge 90e and an alpha particle of charge 2e. what is the initial potential energy
A brass wire is to withstand a tensile force of 350N without breaking. What minimum diameter (in mm) must the wire have
An electron traveling 10^7 m/s to the right enters a constant electric field that slows it to rest. a.)what is the potential different that the electron travels through as it slows down? b.)if the electron travels 0.1 meters before coming to a stop, ..
A stationary detector sends out a sound wave of frequency 0.315 MHz toward an approaching car. What is the frequency of the waves reflected back to the detector
A merry-go-round with, radius 3 m rotates freely with an angular speed of 2/pi rev/s. Its kinetic energy is 4000 J. What is the final angular speed of the merry-go-round and the person after the person jumps on
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