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A thin layer of oil (n = 1.25) is on top of a puddle of water (n = 1.33). If normally incident 500-nm light is strongly reflected, what is the minimum nonzero thickness of the oil layer in nanometers?
A storage tank 27 m high is filled with pure water, Calculate the magnitude of the net force that acts on a square access hatch at the bottom of the tank that measures 0.6 m by 0.6 m
Compute the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.? Imagine adding electrons to the pin until the negative charge has the very l..
A river flows due east at 1.43 m/s. A boat crosses the river from south shore to the north shore by maintaining a constant velocity of 10.5 m/s due north relative to the water.
a find the position of a particle on a circle of radius r with center at the origin. assume that theta is the angle of
Brad tries out a weight-loss plan that involves repeatedly lifting a 45.0-kg barbell from the floor over his head to a height of 2.3 m. If he is able to complete three such lifts per minute, how long will it take for him to lose 0.50 kg of fat? "Burn..
A football kicker can give the ball an initial speed of 24 m/s. He is 45 m from the goalpost which has a crossbar 2.69 m high. What is the smallest angle of elevation
A and B, are located at the similar distance from the observation screens. Light with the similar wavelength λ is used for each. The separation between adjacent principal maxima for grating A is 2.7cm, and for grating B it is 3.2 cm.
what must be the distance in meters between point charge q1 27.8 microc and point charge q2 -68.7 microc for the
The mass The sun is 1.99×10 to the 30th power kilograms and his distance from Earth is 150,000,000 km what is the gravitational force between the sun and earth
a flywheel having constant angular acceleration requires 5.00s to rotate through 165rad . its angular velocity at the
The figure below shows three charges at the corners of a rectangle of length x = 0.35 m and height y = 0.22 m. How much work must be done to move the three charges infinitely far from one another?
suppose 5.00 g of hydrogen is separated into electrons and protons. suppose also the protons are placed at the earths
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