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A 0.25 kg harmonic oscillator has a total oscillation energy of 9.9 J. If the oscillation amplitude is 20.0 cm, what is the oscillation frequency?
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.24 102 m/s from the top of a cliff 126 m above level ground, What is the initial total mechanical energy of the projectile
A barefoot field-goal kicker imparts a speed of 26 m/s to a football at first at rest. If the football has a mass of 0.24 kg and the If the football has the mass of 0.24 kg and the time of contact with the ball is 0.037 s, what is the force exerte..
A spool of thin wire (with inner radius r = 0.50 m, outer radius R = 0.65 m, and moment of inertia I_cm = 1.1323 kg*m2) pivots on a shaft.
What is the size of the frictional force acting on the car
Drawing on Eratoshthenes' method, if two observers are due north and south of each other and are separated by 400 km, what is circumference of their spherical world if they see the similar star on their meridian at altitudes of 23degrees and 47deg..
What is the speed of the river current. What is the swimmer's speed relative to the shore.
Two different electrical devices have the same power consumption, but one is meant to be operated on 120-V AC and the other on 240-V AC. What is the ratio of their currents
Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.50 m below the edge. Explain how fast is she going just before she lands?
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons.
Two speakers are emitting simple harmonic sound waves of frequency 258 Hz and 256 Hz. Describe the sound heard by a listener
Assume that there is a very beautiful ornate crown, supposedly made of solid gold, how would you determine its density
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