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Two bicycle tires are set rolling with the same initial speed of 3.50 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance of 18.8 m; the other is at 105 psi and goes a distance of 93.6 m. Assume that the net horizontal force is due to rolling friction only and take the free-fall acceleration to beg = 9.80 .m/s^2What is the coefficient of rolling friction M for the tire under low pressure?
In preperation for building a space station, an astronaut removes a self-teliscoping uniform rod form the cargo bay and releases it, What is the angular speed after the catch slips
An object is placed 100 cm in front of a diverging lens of focal length -25 cm. What is the lateral magnification of this system of lenses
An electron moving along the x axis has a position given by x = 16 te-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops
The Earth rotates about its axis once in one sidereal day of 23 h 56 min. Calculate the centripetal acceleration of a point located at a latitude of 45 degrees
three uniform objects: a rod, a right triangle, and a square. Their masses and their coordinates in meters are given. Determine the center of gravity for the three-object system
A partly-full paint can has 0.20 gallons of paint left in it. If all the remaining paint is used to coat a wall evenly (wall area = 18 m2), how thick is the layer of wet paint
q. an airplane takes off from the only airstrip in a remote area of canada flies 68.0deg north of east for 177 km then
A child of mass 24 kg sits 2.10m to the left of the center of a seesaw. The mass of the seesaw is 35 kg. How far to the right of the central pivot must a second child of mass 40 kg sit if the seesaw is to be perfectly balanced.
An organ pipe is 119 cm long. What are the fundamental and first three audible overtones if the pipe is closed at one end.
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 13.1 rpm in 10.7 s. what force is required at the edge
Two wires of the same cross-sectional area and length, but made of different materials, are connected in series. what is the resistivity of the other material
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance of 1 m from the end of the track after falling the vertical distance 1.25 m from the end of the track.
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