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A 2.00 kg piece of wood slides on the surface shown in the accompanying figure. All parts of the surface are frictionless, except for a 30.0 m -long rough segment at the bottom, where the coefficient of kinetic friction with the wood is 0.200. The wood starts from rest 3.00 m above the bottom.
Where will the wood eventually come to rest?
How much work is done by friction by the time the wood stops?
On the outside of the wall, the convection heat transfer coefficient is 6 Btu/h-ft^2-R degrees and the air temperature is -10 degrees F. Ignoring radiation, determine the rate of heat transfer through the wall at steady-state in Btu/h
An astronaut in an orbiting spacecraft is ''weighed'' by being strapped to a spring of constant k = 385 N/m, and set into simple harmonic motion. If the oscillation period is 3.0 s, what is the astronaut's mass?
A helicopter has blades of length 4.0 m, rotating at 1.0 rev/s about a central hub, find the emf induced between the blade tip and the central hub
Using the medium p model of the line, Find the current, voltage, reactive power, real power, & power factor at the sending end of the line.
two uniformly charged insulating rods are bent in a semicircular shape with radius r 14.3 cm. if they are positioned
A 169× astronomical telescope is adjusted for a relaxed eye when the two lenses are 1.33 m apart. What is the focal length of each lens
Two masses are connected by a string which goes over an ideal pulley. Block A has a mass of 4.75kg and can slide along the smooth plane inclined by 37.0 degrees above the horizontal. The masses remain stationary. a) draw a free body diagram b) what m..
Thermal conductivity and coefficient of thermal expansion can be important to the life of cutting tool. Why?
an electron is suspended at a distance of1.35cm above a uniform line of charge. what is the linear charge density of
Assume a kid puts her bicycle on its back and starts the rear wheel spinning from rest to a final angular velocity of 250 rpm in 5 second. Evaluate what the angular acceleration
A huge cannon is assembled on an airless planet. The planet has a radius of 6.00×106 m and a mass of 2.09×1024 kg. What height does the projectile reach above the surface
A 238/92U nucleus is moving in the x direction at 5.0 * 10^5 m/s when it decays into an alpha particle 4/2He and a 234/90Th. Write an expression for the conservation of momentun in the x direction
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