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Thin layer of oil (n=1.25) is on top pf puddle of water (n=1.33).If normally incident 500 nm light is strongly raflected, what is the minimum thickness of oil layer.
A bicycle wheel initially rotating at 3 rad/s, the rotation increases to 7 rad/s within 6 seconds. Find the bicycle wheel's angular acceleration in rad/s^2
A light ray in air is incident on a water surface at an angle of 27.7? with respect to the normal to the surface. What is the angle of the refracted ray relative to this normal
A spring is hung from the ceiling. A 0.300-kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
Two small plastic spheres each have a mass of 1.9g and a charge of -52.0 nC. They are placed 3.0cm apart (center to center). A) What is the magnitude of the electric force on each sphere
Calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density thickness. Show your work & please be sure to compare.
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. How much of the rope unwinds in this time interval
Two steel wires are stretched under the same tension. The first wire has a diameter of 0.515 mm, and the second wire has a diameter of 1.19 mm. If the speed of waves traveling along the first wire is 46.0 m/s, what is the speed of waves traveling alo..
a mass-spring system has k=54.4 N/m and m=0.465kg. Find the period of its simple harmonic motion and Find the frequency of its simple harmonic motion
An AC generator supplies an rms voltage of 110 V at 60.0 Hz. It is connected in series with a 0.750 H inductor, a 5.50 ?F capacitor, What is the rms current through the resistor
A 2.00-kg mass object traveling east at 20.0 m/s collides with a 3.00-kg mass object traveling west at 10.0 m/s. After the collision, the 2.00-kg mass has a velocity 5.00 m/s to the west. how much kinetic energy was lost during the collision ?
In brief explain the changes that the Sun will go through after it exhausts its core hydrogen. Be sure to describe both the changes occurring in the Sun's core and the changes visible from outside the Sun. What do we mean by the stages we call hydrog..
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