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White light is incident normally on a thin soap film having an index of refraction of 1.34. It reflects with an interference maximum at 684 nm and an interference minimum at 570 nm with no minima between those two values. The film has air on both sides of it. What is the thickness of the soap film?
A water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, Calculate the magnitude of the net force
A ball is kicked with initial velocity of 14.9 m/s in the horizontal direction and 15.7 in the vertical direction. At what speed does the ball hit the ground
For this question, I got 196 nC but apparently its -196 nC and i was hoping you could explain why the answer is negative: A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on ..
A uniform disk of mass 10 kg and radius 3.0 m can rotate without friction about its fixed center like a merry-go-round. What is the angular velocity of the two disks together about the center of the large disk after the small disk have moved
A photon emitted as a hydrogen atom undergoes a transition from the n = 5 state to the n = 2 state. The energy of the ground state is 13.6 eV. Find the frequency of the emitted photon
An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. Find the magnitudes of the net force acting on the electron
The surface area of an adult human is about 1.8 m^2. Suppose a person with a skin temperature of 34C is standing nude in a room where the air is 25C but the walls are 17C. What is the person's net radiation loss to the walls
What frequency will hear after the train passes
A projectile is fired in such a way that its horizontal range is equal to 7 times its maximum height. What is the angle of projection
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. How much time does it take for the dolphin to come to rest
The temperature of the glass surface of a 30 W light bulb is 75°C when the room temperature is 10°C. Estimate the temperature of a 150 W light bulb with a glass bulb the same size. Consider only radiation, and assume that 90% of energy is emitted as ..
A 70 m3 incompressible box is completely submerged in a fluid. What volume of fluid is displaced by the box if the fluid is air? The density of air is 1.2 kg/m3
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