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A 5-kg piston in a cylinder with diameter of 100 mm is loaded with a linear spring and the outside atmospheric pressure of 100 kPa. The spring exerts no force on the piston when it is at the bottom of the cylinder and for the state shown, the pressure is 400 kPa with volume 0.4 L. The valve is opened to let some air in, causing the piston to rise 2 cm. Find the new pressure.
Light of wavelength 400 nm (in vacuum) is incident on a diffraction grating that has a slit separation of 1.2 x10-5 m. The distance among the grating and the viewing screen is 0.10 m. A diffraction pattern is produced on the screen that consists of a..
Assume that at sea-level the air pressure is 1.0 atm and the air density is 1.3 kg/m3. What would be the height of the atmosphere if the air density were constant
A car is traveling at 50.0 mi/h on a horizontal highway. If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
A 352-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. Find the magnitude of the motorcycle's acceleration
A cylnder holds .5 moles of an ideal gas at temp 334K. The gas expands isothermally from an initail volume of .03 m^3 to a final volume of .4m^3
A hydrogen atom makes a transition from the n = 2 level to the ground state (corresponding to n = 1). Find the wavelength and the frequency of the emitted radiation
A 2.5 cm-long horizontal wire segment has mass 0.15 g and carries a current sufficiently large that it levitates when the segment is in a region of B field upward with magnitude 1.5 T
A river flows due east at 1.43 m/s. A boat crosses the river from south shore to the north shore by maintaining a constant velocity of 10.5 m/s due north relative to the water.
A circular pipe has a diameter of 3 cm and then narrows to 2 cm. When water (density= 1000kg/m^3) flows during at a certain rate, the pressure is 24.0 kPa in the smaller section and 32.0 kPa in the larger section. There is no height change. What is t..
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
When 165 V is applied across a wire that is 14 m long and has a 0.31 mm radius, Find the resistivity of the wire
q1. below are birds-eye views of six identical toy cars moving to the right at 2? various forces act on the cars with
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