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An ideal fluid, of density 0.85 x 103kg/m3, flows at 7.0 m/s through a level pipe with radiusof 0.50 cm. The pressure in the fluid is 1.4 x 105N/m2. This pipe connects to a second level pipe, withradius of 1.5 cm. Find the speed of flow in the second pipe.
An electric field of magnitude 5.25 105 N/C points due west at a certain location. Find the magnitude and direction of the force on a
A compound absorbs at 500 nm with a halfwidth of 500 cm-1 and maximum molar extinction of 4x10^4M-1 cm-1. What is the oscillator strength? What is the excited state rate of emission (A)?
20 g of helium are placed in a cylinder with a movable piston. What is the maximum temperature reached during the compression
a puck with a mass of .113 kg is spun clockwise around a center. its original distance from the center of rotation is
an inventor has a rough design for a light fixture with a dimmer knob. the fixture contains a 50-microf capacitor an
A 900 kg car can accelerate from rest to90 km/h in 7.4 s. What is the average power delivered by the engine
A building made with a steel structure is 596 m high on a winterday when the temperature is 0?F. How much taller is the building when the temperature is T = 104?F? (The linearexpansion coefficient of steel is α = 1.1 ×10−5 (?C)−1.)
A long solenoid has 231 turns in a length of 13 cm, radius of 1.8 cm, and I= 1.3 A. Find the magnitude of the average induced emf in the coil
The time constant of a RC circuit is 5 sec. How long does it takefor the capacitor in this circuit to accumulate about 50% voltage of the total voltage? Assume the capacitor has zero volt at the beginning.
An electron is moving at 1.8 x 10 ^ -6 m/s when it enters an electric field that shows it. The field has a magnitude of 6200 N/c. How far does the electron penetrate the field before it stops?
A sodium surface, which has a work function of 2.46eV is illuminated with a wavelength = 300nm light. What is the deBroglie wavelength of these electrons
A ball on a porch rolls 44 cm to the porch's edge, drops 94 cm, continues rolling on the grass, What is the magnitude of the ball's net displacement
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