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The heels on a pair of women's shoes have radii of0.50 cm at the bottom. If 32% of the weight of awoman weighing 590 N is supported byeach heel, find the stress on each heel.
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A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.8 m, and the radius of the Earth is R = 6.38 x 106 m. (a) How far is it to the horizon? In other word..
stiff wire bent into a semicircle of radius a is rotated at constant frequency f in a uniform magnetic field B, What is the amplitude of the emf
A convex mirror has a focal length of -25.5 cm. Find the magnification produced by the mirror when the object distance is 8.7 cm
A tungsten wire has a radius of 0.086 mm and is heated from 20.0 to 1422 oC. The temperature coefficient of resistivity is ? = 4.5, How long is the wire
A bat emits chirping sounds of frequency 75 kHz while hunting for moths to eat. The bat flies east at 8 m/s. What is the frequency of the reflected sound detected by the bat
A 4,000-kg satellite is traveling in a circular orbit 200 km above the surface of the Earth. What is the force of gravity on the marble as viewed by the observers on the Earth
The terminals of a 0.900V watch battery are connected by a 90.0?m?long gold wire with a diameter of 0.200mm, compute the current in the wire
A horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current direction is 50° S of W. What is the size of the force on the wire
A box is at rest on a horizontal table. Is it because of the first law, second law, and or third law of motion that those two forces are equal
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
A block of mass m is attached to a fixed wall by means of a spring whose force constant is k. The block slides on an inclined plane of angle θ. The kinetic friction coefficient between the block and the inclined surface is μ.
A 0.280 kg ball is dropped from rest at a point 1.35m above the floor. The ball rebounds straight upward to a height of 0.780 m. What are the magnitude and direction of impulse of the net force applied to the ball during the collision with the flo..
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