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A 2-in.-diameter sphere weighing 0.14 lb is suspended by the jet of air shown in Fig. P9.84 and Video V3.2. The drag coefficient for the sphere is 0.5. Determine the reading on the pressure gage if friction and gravity effects can be neglected for the flow between the pressure gage and the nozzle exit.
Four charges are placed at the corners of a rectangle. If q1 = 43.0 x 10-9 C, q2 = 29.0 x 10-9 C, q3 = -42.0 x 10-9 C, q4 = -56.0 x 10-9 C, What would be the magnitude of the electrical field
A small piece of dust of mass m = 1.6 mu or micro g (micrograms) travels through an electric air cleaner in which the electric field is 557 N/C. What is the Charge on the dust particle
a wheel of perimeter 220 cm rolls on a level road at a speed of 9 km/hr how many revolutions does the wheel make per second
Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead. What is the power loss due to resistance in the line
An astronomical telescope uses an objective power +2.00 D. If the length of the telescope is 52 cm, what is the focal length of the eyepiece
You are given a disc of uniform density and need to design an experiment to determine its moment of inertia, I
It requires 5,650 Joules (J) of energy to lift a mass 15 feet into the air, what is the weight of that mass in units of Newtons
Two long parallel wires carry unequal currents in the similar direction. The ratio of the currents is 3 to 1. The magnitude of the magnetic field at the point in the plane of the wires and 10 cm from each wire is 4.o uT. What is the larger of the two..
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point. what is the magnitude of the charge on each sphere
Light shines through a single slit whose width is 5.8 x 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m away. The distance between the middle of the central bright fringe and the first dark fringe is 4.3 mm. What is the wavelen..
A skier wears a goose down jacket of thickness 3.75cm and total surface area of 1.25m^2. determine the temperature at the surface of the skin
Sodium has a volume expansion coefficient of 15' 10-5 K-1. Calculate: a. The percentage change in the Fermi energy as the temperature is raised from 0K to 300K. Comment on the Magnitude of the change and the percentage change of the Fermi velocity..
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