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A tuning fork labelled 392 Hz has the tip of each of its two prongs vibrating by amplitude of 0.600mm
a) What is the maximum speed of the tip of a prong?
b) A housefly with mass 0.0270 g is holding on to the tip of one of the prongs. As the prong vibrates, what is the fly's maximum kinetic energy? Suppose that the fly's mass has a negligible effect on the frequency of oscillation?
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A spherical aluminum ball of mass 1.56kg contains an empty spherical cavity that is concentric with the ball. The ball just barely floats in water. Evaluate the radius of the cavity
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.850 m/s at an angle of 34.8° above the table, and it lands on the magazine 0.0780 s after leaving the table. Ignore air resistance. How ..
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one mole of a dilute gas initially has a pressure equal to 1.00 atm and a volume equal to 27.0 l. as the gas is slowly
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An electric heater plugged into a 115-V AC outlet uses an average electric power of 1200 W. What are the rms current and the maximum instantaneous current through the heater
question1find out the tension in each of the two ropes supporting a hammock if one is at an angle of 14 above
1- a 1.8 mw helium-neon laser beam delivers a spot of light 8 mm in diameter across a room 17 m wide. the beam radiates
The coefficients of kinetic and static friction between a 1000 lb refrigerator and flor are .4 and .45. when at rest the refrigerator is pushed with a horizontal force of 300 lb. what is the force of friction between the fridge and the floor?
The critical angle for a certain liquid-air surface is 63°. Determine the index of refraction of the liquid and the speed of light in the liquid
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