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Linear polarizers whose transmission axes make an angle of 45degree with each other,.The transmitted light intensity through both polarizers is what percentage of the incident intensity?
A 0.200 kg hammer is moving horizontally at 8.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
A cord of length 1.5 m is fixed at both ends. Its mass per unit length is 1.2 g/m and the tension is 12 N. Calculate the frequency of the fundamental oscillation
questiona professional race-car driver buys a car which can accelerate at 89.0 ms2. the racer decides to race beside
A car travels at a constant speed around a circular trackwhose radius is 2.6 km. find the magnitude of the centripetal acceleration of the car
A 52dB sound wave strikes an eardrum whose area is 5.0×10?5m^2 . a)How much energy is received by the eardrum per second? b)At this rate, how long would it take your eardrum to receive a total energy of 7.0J?
A hospital orderly pushes horizontally on two boxes of equipment ona rough horizontal floor, as show in figure 4.38. Make a free-bodydiagram of each box if the force applied to the 50lb boxis 115N and each box experiences frictional forces of 8.2N.
A mass of 0.32 kg, attached to a spring with a spring constant of 73.0 N/m, is set into simple harmonic motion. What is the magnitude of the acceleration of the mass
A 10 kg picture is held in place by two wires, the first hanging at 35 degrees to left of vertical and second at 45 degrees to right of vertical
A spherical mirror is to be used to form ona screen 5.00m from the object, an image five times the size of the object. Describe the type of mirror required.
Describe Erikson, Levinson, cognitive developmental theorists, Kohlberg, behavioral theorists, Bronfenbrenner, Holland, the eclectic theory, and composite theory.
If the initial speed of the block is increased to infinity, it turns out that the time taken for the block to come to a rest approaches a finite value whereas the distance traveled approaches infinity, Find the maximum time taken for the block to c..
A spacecraft approaching the earth launches an exploration vehicle. After the launch, What is the speed of the exploration vehicle relative to the spaceship
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