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A thin film of oil (n = 1.55) of thickness 0.40 µm is spread over a puddle of water (n = 1.33). For which wavelength in the visible spectrum do you expect constructive interference for reflection at normal incidence? (Let the visible spectrum be 400-720 nm.)
the drawing shows three point charges fixed in place. the charge at the coordinate origin has a value of q1 9.54c the
A planet with a radius of 6.68 ×107 m has a gravitational field of magnitude 34.2 m/s2 at the surface. What is the escape speed from the planet
A spherical brass shell has an interior volume of 1.60 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.86 x 10-3 m3. The space between the steel ball and the inner surface of the brass shell is filled completel..
A 12,000 lb truck is southbound on the Guadalupe street. Whenit enters the intersection with the MLK boulevard, its velocity is20 MPH in the direction 30° East from South.
A 50g ball of clay traveling at speed v0 hits and sticks to a 1.0kg block sitting at rest on a frictionless surface. what os the speed of the brick after the collision
A patient in therapy has a forearm that weighs 20.5N and lifts a 112.0N. The only other significant force on his forearm come from the biceps muscles (which acts perpendicularly to the forearm) and the forces at the elbow. If the biceps produce a ..
An object-spring system oscillates with amplitude of 3.00cm. If the spring constant is 205 N/m and object has a mass of 0.50 kg, determine each of the following values.
Determine the mass of a 4.6 meter beam, if it is balanced on a fulcrum 2.16 meters from the left end. A 820 N man stands on the very left end
A listener increases his distance from a sound source by a factor of 3.05, what is the change in the sound intensity level in dB
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.08 km. What is the direction (relative to due east) of the couple's displacement
A student pushes a 60 kg couch across a carpet at a constant velocity. find the magnitude of the force of the student on the couch
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ? 1011 solar masses. What should the orbital period of that star be
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