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A 190 N object floats with three-fourths of its volume beneath thesurface of the water. What is the buoyant force on the object?
A very light spring of equilibrium length 10.0 cm is hung from the ceiling with a 0.40 kg block at its end. When the block settles, the spring is 15.0 cm long. The same block-and-spring system is then set up horizontally on the floor, with the fr..
A test tube contains 2.90x10^-4 m3 of liquid carbon tetrachloride (? = 1240x10^-6 (C°)-1) at a temperature of 82.0°C. Find the volume of carbon tetrachloride in the test tube at -14.0°C
A net force of 132 N acts on a baseball (m=140g) for a period of 0.045s. What is the magnitude of the change in momentum of the ball?
Water at 2 kg/s is the working fluid in the power cycle shown below. Saturated liquid at 10 kPa enters the pump, What is the overall efficiency of the entire cycle
Two of Angie's friends are talking to each other at a distance of 3.0 m from where Angie stands. What sound intensity does he measure for the two talkers
the stopping potential for electrons emitted from a surface illuminated by light of wavelength 484 nm is 0.600 v. when
Take element Z = 39 from the periodic table. Ionize it 38 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
questiona baseball is hit with a speed of 30.0 ms at an angle of 43.0 degrees. it lands on the flat roof of a 12 meter
Two blocks m1 = 9.8 kg and m2 = 4.0 kg are connected by a homogeneous rope that has a mass of mr = 1.32 kg. What is the magnitude of the tension in the rope
What fraction of ice is submerged when it floats in freshwater, given the density of water at a temperature of 0 degrees celcius is very close to 1000 kilograms/meter cubed
Young's experiment is performed with light of wavelength 502nm from excited helium atoms. What is the separation of the two slits
An Shot putter throw the shot from a height of 2m over the ground with the speed of 15m/s in the direction 36,9° upwards. What is the speed of the shot when it lands
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