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A thin film of alcohol (n=1.36) lies on a flat glass plate (n=1.51). When monochromatic light is incident normally on the system, the reflected light is a minimum for lambda = 512nm and a maximum for lambda = 640nm. There are no intervening wavelengths that give rise to a maximum or minimum. What is the thickness of the film?
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 105 m below
A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane . Determine the speed of the block after it has traveled 1.80 along the plane, ..
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
Train car 1 has a mass of 6.5 x 10^4 kg and is sitting stationary on a track. Train car 2, with a mass of 9.30 x 10^3 kg, What is the speed of Train car 1 after the collision
Two balls with a net charge of - 4.0 C and + 10.0 C are separated by 2 cm. A) What is the electrostatic force on the positive charge? B) What is the electrostatic force on the negative charge?
An iron rod of diameter 2.6 cm and length 80.0 cm is to be inserted inside a long solenoid to make an electromagnet. how many turns of wire will be needed for the solenoid
A 362 g object is attached to a spring and executes simple harmonic motion with the period of 0.200 s. If the total energy of the system is 6.71 J.
A Na+ ion moves from inside a cell, where the electric potential is -68 mV, to outside the cell, Does its energy increase or decrease
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
An object of mass m= 1.00 kg is moving initially with a speed of 2.0 m/s along positive x- direction, Determine the speed and direction of motion of second object
A 74.9-kg skier rides a 3180-m-long lift to the top of a mountain. The lift makes an angle of 17.0 ° with the horizontal
Two long, straight, parallel wires of length 3.6 m carry parallel currents of 3.2 A and 0.9 A. What is the magnitude of the force between the two wires
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