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A 60 mph wind blows against a football stadium scoreboard that is 36 ft tall, 80 ft wide, and 8 ft thick (parallel to the wind). Estimate the wind force on the scoreboard. See Fig. 9.28 for drag coefficient data.
A pane of glass is submerged in water. The index of refraction of the glass is 1.5, and that of water is 1.33. A ray of light passes from the water into the glass at an angle of incidence of 30, Find the refractive angle
Points A, B, and C are at the vertices of an equilateral triangle.A certain positive charge q placed at A produces anelectric field of magnitude 235 N/C at C.Suppose a second, identical charge is placed at B. What is themagnitude of the new electric ..
Two waves are described by the wave functions. What is the amplitude and phase of the resulting wave?
If the mass of both weights is 175gm, the first mass is located 20 north of east, the second mass is located 20 south of east, and the transducer sensitivity is 0.5volts/Newton, how large a voltage do you expect to measure? Imagine the transducer ..
A piston-cylinder contains 50 L of saturated liquid R-134a. The piston is frictionless, and has a mass and area resulting in an applied pressure of 600 kPa on the refrigerant. The refrigerant is now heated until its temperature rises to 70 °C. Comput..
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. What is the speed at which the belt of the ramp is moving
Light of wavelength 600nm is incedent normally on a surface of area 4 cm^2. Determine the radiation pressure exerted upon the surface
A 5.70-kg ball is dropped from a height of 12.0m above one end of a uniform bar that pivots at its center. The bar has mass 6.00kg and is 4.80m in length. At the other end of the bar sits another 5.10-kg ball, unattached to the bar. The dropped ball ..
A frictionless plane is 10.0 m long and inclined at 34.0°. A sled starts at the bottom with an initial speed of 6.00 m/s up the incline. Determine the initial speed of the second sled
They then turn together around the spindle with their centers superposed. What is an angular frequency in of the combination.
An electrically charged bullet of mass 0.010 kg leaves thebarrel of a gun traveling parallel to the ground and perpendicularto the Earth's magnetic field at 1.400e+3 m/s. Intheory, what charge could the bullet carry in order to remain at aconstant..
Newton's equation for force.
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