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Consider an airplane window (area 0.29 m2). If the pressure inside the plane is atmospheric pressure and the pressure outside is 22% of Patm, what is the force on the window? Ignore the velocity of the airplane (i.e., ignore Bernoulli's effect).
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Two small metallic spheres, each of mass m = 0.198 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.4 nC, and they come to equilibrium when each string is ..
A professor's office door is 0.9 wide, 2.2 high, 4.2 thick; has a mass of 23 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. while the door is open and at rest, the door closer exerts a torqu..
A total charge of Q is deposited on a solid metal sphere of radius R. This charge distributes itself uniformly over the surface, yielding an electrostatic field E~ perpendicular =(sigma / e0) n^ just outside the sphere and E~ = 0 everywhere insid..
The initial height of the ball is 60.0m and has a potential energy and initial pe of 1176.00, What was the maximum speed after it hit bottom
Determine the resulting specific gravity when the three liquids in the containers A, B and C are mixed together.
A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information
A beam of laser light with a wavelenth of ? = 690.00 nm passes through a circular aperture of diameter a = 0.133 mm. What is the angular width of the central diffraction maximum
A superhero flies 272m from the top of a tall building at an angle of 32 below the horizontal. What is the vertical component of the superhero's displacement.
A woman stands on a scale in a moving elevator. Her mass is 55.0 kg, and the combined mass of the elevator and scale is an additional 755 kg. What does the scale read (in N) during the acceleration
Mary throws a ball to Suzy, who is standing 25 meters away. Suzy catches the ball from the same height at which it was thrown. calculate initial vertical velocity and Horizontal velocity
A copper block is removed from a 300^0 C oven and dropped into 1 L of water at 20.0^0 C. The water quickly reaches 25.5^0 C and after that remains at that temperature. What is the mass of copper block.
A glass plate (n=1.62) is coated with a thin, transparent film (n=1.27). Light reflected at normal incidence is observed as the wavelength is varied continuously. Find the thickness of the film
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