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1. The frequency of a simple harmonic oscillator is increased from 0.25 Hz to 0.60 Hz. What is the change in its period (final - initial)?
2. A 0.25-kilogram mass on a vertical spring oscillates at a frequency of 1.0 Hz. If a 0.45-kilogram mass were instead suspended from the same spring, what would be the frequency of oscillation?
3. A breeze sets in oscillation a lamp suspended from the ceiling. If the period is 2.5 s, what is the distance from the ceiling to the lamp at the lowest point? Assume the lamp acts as a simple pendulum.
A person wearing a seat belt can withstand an acceleration of -3.0 x 10^2 m/s^2. Explain how thick should barriers be to safely stop a car that hits a barrier at 110 km/h?
Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
In an ultra-low-temperature experiment, a collection of atoms enter a special state called a Bose-Einstein condensate, What is the speed of light in this condensate
In the Biomedical and Physical Sciences building at MSU there are 132 steps from the ground floor to the sixth floor. Each step is 16.6 cm tall. How many food Calories did the person burn during the walk
A column of soldiers, marching at 141 paces per minute, keep in step with the beat of a drummer at the head of the column, What is the approximate length of the column
A pot containing 1.01 liter of water, initially at 19°C, is placed on a 1051 W electric heating element. How much heat is necessary to boil all the water away
A man pulls a wagon by exerting a 145 N force along the handle at 62.5° above the horizontal. Find the horizontal and vertical components of the force
A 380-N, uniform, 1.50 m bar is suspended horizontally by two vertical cables at each end. A small object of weight 520 N is placed distance 0.5 m from the cable A. What is the tension in cable A.
A single slit has aperture width 4.54 μm and lies 14.9 cm from a screen. If light of wavelength 420 nm falls on the slit, find the width of the central maximum in centimeters
If the 2 kg mass slides on a horizontal frictionless surface, what is the speed of the mass 4 kg while it has fallen a distance 0.4 m downward from its rest position.
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
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