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The third-order fringe of 610nm light is observed at an angleof 18 degrees when the light falls on two narrow slits. How far apart are the slits?
Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. What is the focal length of the concave lens
A golf ball (m=.05 kg) and a cannonball (M=100 kg) collide head on. Before the collision, the two balls had equal speeds of 30 m/s and opposite directions. After the collision, the speed of the golf ball is approximately
A train is traveling at 30.0m/s relative to the ground in still air. The frequency of the note emitted by the train whistle is 262Hz . The speed of sound in air should be taken as 344m/s . What frequency f approach is heard by a passenger on a tra..
magine Bob lives on the earth at rest. Clara is traveling past theearth with a velocity of 9800 m/s. find the magnitude of the velocity of themeteor seen by Clara
Brain Function and Magnetic Fields Experiments have shown that thought processes in the brain can be affected if the parietal lobe is exposed to a magnetic field with a strength of 1.0T .
After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.200M solution of a weak acid, HA = (Ka = 6.0 x 10^-7), with 0.200M KOH. Indicate the pH at (a) the beginning of the titration
Universal beam section: bending moment, maximum stress, radius of curvature, A universal beam section has a second moment of area about its neutral axis of 6487 cm4 and its overall depth is 305 mm
A car battery has a rating of 200 ampere * hours (A*h). What is the total charge (in coulombs) that this battery can provide
in a youngs double-slit experiment the wavelength of light used is 463 nm in vacuum and the separation between the
A coffee-maker (11 ?) and a toaster (16 ?) are connected in parallel to the same 120-V outlet in a kitchen. How much total power is supplied to the two appliances
A day-care worker pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a spinning rate of 20.4 rpm in 11.0 s. Calculate the torque required to produce the acceleration
A sound wave propagates in air at 28°C with frequency 3.20 kHz. It passes through a region where the temperature gradually changes, and then it moves through air at 0°C. (a) What is the speed of the wave at 0°C? (b) What is the wavelength of the wave..
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