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When 200g of aluminum at 100° c is dropped into aluminum calorimeter of mass 120 g and containing 150g kerosene at 15° C, the mixture reaches at temperature of 50° C. What is the specific heat of kerosene? (sp. Ht. of Al = 0.214 cal/g-°C)
A 0.550 {\rm kg} glider on an air track is attached to the end of an ideal spring with force constant 458 {\rm N}/{\rm m}; Compute the total mechanical energy of the glider at any point in its motion
Atwood's Machine The two masses (m1 = 5.1kg and m2 = 2.5kg ) in the Atwood's machine are released from rest, with m1 at a height of 0.95m above the floor. Determine the pulley's mass
Find the pressure difference on an airplane wing if air flows over the upper surface with a speed of 114 m/s , and along the bottom surface with a speed of 105m/s
Unpolarized light of initial intensity 26W/m^2 is passed through three polarizing filters polarizing filters. compute the intensity of the light after passing through all three polarizing filters
a square loop of wire surrounds a solenoid. the side of the square is 0.1 m while the radius of the solenoid is 0.025
The peak wavelength for the blackbody radiation from a star corresponds to an energy of 2.92x10^ -19 J. what is the temperature of the star at the surface
A 5.00?F capacitor that is initially uncharged is connected in series with a 5.50k? resistor and an emf source with E= 145V negligible internal resistance, Just after the circuit is completed, what is the voltage drop across the capacitor
question a swimmer heading directly across a river 200 m wide reaches the opposite bank in 6 min 40 s. she is swept
a person's reaction time is generally not quick enough to allow the person to catch a dollar bill dropped between the fingers. If a typical reaction time in this case is 0.25 s
The Apollo Lunar Module was used to create the transition from the spacecraft to the moon's surface and back. Consider the similar module for landing on the surface of Mars. Use conservation of mechanical energy to answer these questions.
a particle with speed v0 and impact parameter b starts far away from a planet of mass m. a. starting from scratch find
A point source of light illuminates an aperture 2.00m away. How wide is the aperture
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