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You wish to create a 3 cm tall image on a screen 45 cm from a 6 cm tall illuminated light bulb.
What focal length lens would you use and where would you place it?
Draw the system below (and also use the space below for your calculations).
Bill measures the rate at which the clock in Sam's spaceship runs and finds that it is one-third the rate at which the same clock runs when it is at rest
A uniform magnetic field, B = 0.0002 T, exists in the +x-direction. A proton (q = +e) shoots through the field in the +ydirection with a speed of 5 x 106 m/s. Find the magnitude and direction of the force on the proton.
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 3.9 minutes
A “U” shaped tube (with a constant radius) is filled with water and oil as shown. The water is a height h1 = 0.37 m above the bottom of the tube on the left side of the tube and a height h2 = 0.12 m above the bottom of the tube on the right side o..
How do astronomers "detect" a black hole? Name the three major classifications of galaxies. What is a quasar? What are two types of spiral galaxy, and how do they differ?
Consider neon, a noble gas whose molecules consist of single atoms of atomic mass 0.02 kg/mol. Avogadro's number is 6.02 × 1023 mol-1, what is the average kinetic energy of a neon atom
Three positive charges are located in the x-y plane (see plot below), with Q1=3.10 ?C, Q2=5.20 ?C and Q3=6.30 ?C. Note that the charges are located at grid intersections, and that the x and y coordinates are in cm.
question what fraction of the power radiated by the sun is intercepted by the planet mercury? the radius of mercury is
A ball is kicked horizontally of the roof of a 100-ft high building at a speed of 18 ft/sec. Determine the angle in which the ball hits the ground
A fictional spaceship accelerates at a constant rate of 0.107 m/s2. What would be its final velocity
If we attach a speedometer to a free falling object, by how much would its speed reading increase each second of the fall
In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 2.62 millimeter. Find the difference between these wavelengths
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