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A petite young woman distributes her 540N weight equally over the heels of her high-heeled shoes. Each heel has an area of 0.850 cm^2
(a) What pressure is exerted on the floor by each heel?
(b) With the same pressure, how much weight could be supported by two flat-bottomed sandals, each of area 160 cm^2?
how much time passes before the brick lands on the ground.
What is the least thickness of a soap bubble film (n = 1.38) on which light of wave length 610nm shines, assuming one observes constructive interference of the reflected light.
A slab of glass with an index of refraction of 1.55 is submerged in a liquid with an index of refraction of 1.25. Find the angle of refraction for the angle of incidence of 60°
Suppose you performed the experiment in atmosphere of Argon at 25 deg. C, How many electrons have been attached to, or detached from the initially neutral plastic sphere
How much work is done on the toboggan by the tension force? Explain how much work is done if the same tension is directed parallel to the snow?
Write the expression of the force fl j corresponding to the Uu potential energy term. Derive the expression of the distance r m i n at which Uu has its minimum value, as a function of the parameters a and/or E.
Two blocks with mass m1=2kg and m2=3kg hang on either side of a pulley. Block m is on an incline at 30 degrees, Find the maximum extension of the spring.
Light of wavelength 0.533 µm (in air) enters the water in a swimming pool. What is the wavelength of the light in water
A 4.86 g bullet moving with an initial speed of vi = 439 m/s is fired into and passes through a 1.06 kg block. The block, initially at rest on a frictionless horizontal surface, is connected to a spring with the spring constant of 832 N/m.
A rectangular container measuring 10cmx20cmx25cm is filled with gas. What is the mass volume of water in kilograms.
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
A rod of length l and uniform mass m is hinged at its lower end while it was held at rest in a vertical position. What is the angular acceleration of the rod during the fall for a given theta
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