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Calculate the force and pressure acting across the pelvis and at the feet of a 150 lbm person. Model the body using cylinders. Neglect external pressures (such as air pressure) Assume that the individual distributes his/her weight equally between two legs. Assume that the cross-sectional area of the foot is approximately that of the leg. Assume that the cross sectional area of the pelvis is approximately that of the trunk of the body. Several additional assumptions are needed; state them clearly. In your ,model is the pressure higher at the pelvis or the feet? Is this consistent with what you expected?
An accurate clock is kept in a laboratory located on the equator of the Earth, calculate the difference that accumulates between the laboratory clock and each of the two flying clocks upon one trip around the Earth
Light passes from air into a substance. The angle of refraction is 22degrees and angle of incidence is 30 degrees. Compute the polarizing angle for this substance. Name a substance that has this index of refraction.
A projectile is fired with an initial speed of 36.7m/sat an angle of 42.1 above the horizontal on a long flat firing range. Decide the total time in the air. Decide the speed of the projectile 1.30s after firing. Determine the maximum height reached ..
Ship moving initially at 10.7 m/s due North, drifts due NE at the same speed. To correct the bearing, the captain accelerates the engine and turns the rudder NW. If the engines deliver a constant acceleration of 4.4 m/s2, how long will it take to a..
A trooper is moving due south along the freeway at a speed of 32 m/s. At time t = 0, a red car passes the trooper. The red car moves by constant velocity of 43 m/s southward. At the instant the trooper's car is passed, the trooper begins to speed up ..
A lens that has a focal length of 8.90 cm is used as a magnifying glass. (a) To obtain maximum magnification and an image that can be seen clearly by a normal eye, where should the object be placed? (b) What is the magnification?
consider the earth and a cloud layer 825 m above the earth to be the plates of a parallel-plate capacitor. if the cloud
a physics book slides off a horizontal tabletop with a speed of 1.10 . it strikes the floor in 0.350 . ignore air
A straight, stiff wire of length 1.00 m and mass 21g is suspended in a magnetic field B = 0.58T. The wire is connected to an emf. How much current must flow in the wire and in what direction so that the wire is suspended and the tension in the sup..
a 3 kg mass attached to a spring oscillates with a period of 0.5 seconds and amplitude of 1/4 meter. find the maximum speed of the mass
What would its speed be relative to the Earth in m/s?
A uniform magnetic field of 100 mT passes through a loop of wire having an area of 0.039 m2. Find what is the magnetic flux through the loop
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