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Assume you are taking pictures of the sun with a digital camera.
You have a 1024 x 1024 pixel sensor that is 12.5mm by 12.5mm overall in size.
What focal length lens do you need to use so that the image of the sun fits onto the sensor?
How big does the exit pupil need to be in order for the lens to operate at f/4?
Two resistors of resistance R are connected in parallel. The combination is connected in series to a resistor of resistance 2R. What is the resistance of this combination of resistors
A collision between two protons produces three new particles: p + p --->p + + + 0 + 0. The rest energies of the new particles are + (139.6 MeV), 0 (1116 MeV), 0 (497.7 MeV). Note that one proton disappears during the reaction. How much of the protons..
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm. An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm.
One afternoon, a couple walks three-fourths of the way around a circular lake, What is the magnitude of the couple's displacement
A solid sphere of mass 0.599 kilogram rolls without slipping along a horizontal surface with a translational speed of 5.44 m/s. It comes to an incline that makes an angle of 31°with the horizontal surface.
A concave mirror forms a real image which is twice the size of the object. calculate the radius of curvature of the mirror
Two speakers are driven by a common oscillator at 800 Hz and face each other at a distance of 1.25 m. Locate the points along a line joining the two speakers where relative minima would be expected. (Use v = 343 m/s).
Jason takes off from rest across level water on his jet-powered skis. The combined mass of Jason and his skis is 75 kg, What is Jason's top speed
What is the total negative charge, in Coulombs, of all the electrons in a small 0.750 g sphere of carbon
A +3 mC point charge is placed at the center of the -6 mC spherical shell. Show how the charge is distributed through the spherical shell on a diagram
Two blocks collide on a frictionless surface. After the collision, the blocks stick together. Block A has a mass M and is initially moving to the right at speed v. Block B has a mass 2M and is initially at rest. System C is composed of both blocks.
A person with mass m1 = 59.0 kg stands at the left end of a uniform beam with mass m2 = 93.0 kg and a length L = 2.9 m. Another person with mass m3 = 68.0 kg stands on the far right end of the beam and holds a medicine ball with mass m4 = 13.0 kg
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