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A walkway suspended across a hotel lobby is supported at numerouspoints along its edges by a vertical cable above each point and avertical column underneath. The steel cable is 1.27cm in diameterand is 5.75m long before loading. The aluminum column is a hollowcylinder with an inside diameter of 16.14cm, an outside diameter of16.24cm, and an unloaded length of 3.25m. When the walkway exerts aload force of 8500N on one of the support point, through what distance does the point move down?
cylindrical tube oriented vertically on earths surface closed at the bottom and open at the top height 100 m cross
A flat sheet of paper of area 0.260{\rm m^{2}} is oriented so that the normal to the sheet is at an angle of 54^\circ to a uniform electric field of magnitude 18{\rm N/C}. Find the magnitude of the electric flux through the sheet
a piece of rock reads 2.776 N on a scale when in air, but 1.893 N in a fluid of unknown specific gravity. what is the density of the fluid
finding the thermal conductivity (k) of a box with total surface area of 1.20 m and a wall thickness of 4cm is made of an insulating material. a 10 W electric heater inside the box maintain the inside temp. at 15 C above the outside temp.
A 1.5V battery has an internal resistance of .5 Ohm. If a light bulb with cold resistance of 10 Ohm is placed in a series with the battery, how much current initially flows in the circuit
A 2540 kg satellite used in a cellular telephone network is in a circular orbit at a height of 800km above the surface of the earth. What is the gravitational force on the satellite
The atmosphere on Mars is almost all carbon dioxide (CO2), and has a pressure of about 6.9×102 Pa, what is the mass of one cubic meter of the atmosphere
A spring is used to propel a 0.400-kg hockey puck across level (frictionless) ice that becomes a rough (not frictionless) ramp inclined at 27°. If the puck reaches a maximum vertical height of 14 cm on the ramp, what distance does it travel along t..
A 42.00kg pole vaulter running at 13 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
When seven people whose average mass is 83 kg sit down in a car, they ?nd that the car drops 0.99 cm lower on its springs. What is the frequency of the car's vibration
A butterfly fliest from the top of a tree in the center of a garden to rest on top of a red flower at the garden's edge. The tree is 8 m taller than the flower, and the garden is 12 m wide. Determine the magnitudes of the butterfly's displacement?
A thin, 70.0g disk with a diameter of 7.50cm rotates about an axis through its center with 0.270J of kinetic energy
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