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a) The analyzer is rotated by 35 degrees. Discover the fraction of light transmitted.
b) If the analyzer is left as it was initially, and a second filter is inserted at an angle of 35 degrees with the polarizer, what fraction passes the analyzer?
A woman at an airport is towing her 15.0-kg suitcase at constant speed by pulling on a strap at an angle ? above the horizontal. What angle does the strap make with the horizontal
A grocery cart with mass of 16 kilogram is pushed at a fix speed along an aisle by a force of 12 Newton. Obtain the work done by the person on the cart if the aisle is 15 meter long
A projectile of mass 2.0 kg approaches a stationary target body at 5.0 m/s. find the magnitude of the momentum of the target body
A 480HZ sound wave in 20 centigrade air propagates into the water of a swimming pool. Assume that the wave's speed in the water is 1480m/s. What is the wave's frequency in the water? What is the wave's wavelength in the water?
In Oersted's experiment, suppose that the compass was 0.27 m from the current-carrying wire. If a magnetic field of 1/4 the Earth's magnetic field of 5*10-5 T was required to give a noticeable deflection of the compass needle, what current must the w..
A 17-kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 95kg?m2 and radius 1.70m. What fraction of a full circle does the dog's motion make with respect to the ground
Identical objects are located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. What speed will put the car on the verge of sliding
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", What volume of water, in acre-feet, fell on the town
The drain plug on a car's engine has tightened to a torque 25 m ? N . If a 0.15-m-long wrench is used to change the oil, what is the minimum force needed to loosen the plug
When a moving car of small mass collides with the stationary car of large mass, after the collision
A hydrogen atom initially in its ground state (n =1) absorbs a photon and ends up in the state for which n = 3. What is the energy of the absorbed photon
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