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In a slide or movie projector, the film acts as the object whose image is projected on a screen.
Part A. If a 116 mm focal-length lens is to project an image on a screen 8.00 m away, how far from the lens should the slide be?
Part B. If the slide is 36 mm wide, how wide will the picture be on the screen?
Two speakers, one straight behind the other, are each generating a 285 Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Suppose that the s..
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology, What is the radius of the arc of the teardrop at the top
A stationary detector sends out a sound wave of frequency 0.315 MHz toward an approaching car. What is the frequency of the waves reflected back to the detector
What is the angle of total internal reflection (critical angle) for a glass-to-water interface
A capacitor (capacitance C1) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one.
Suppose that a plane is flying due west with an airspeed of 222 km/h. What is the magnitude of the wind velocity
two boxes a and b are connected by a lightweight cord disregard the mass of the cord. box a has a mass of 5.0 kg and
A challenge gaining prominence throughout the planet is the increased need for \"green\" or sustainable energy. how much energy does the wind turbine generate
Two batteries of emf and internal resistance e1,2 and r1,2 are connected in parallel. Find the effective emf and internal resistance
Two capacitors are connected parallel to each other. Let C1= 3.50?F ,C2 = 5.50?F be their capacitances, Calculate the potential difference across each capacitor
A pipe carrying 20°C water has a diameter of 2.4 cm. Estimate the maximum flow speed if the flow must be streamline
The length of a moving spaceship is 29.4 m according to an astronaut on the spaceship. compute the speed of the spaceship
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