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A 2.0- kg piece of wood slides on the surface shown inFig 7.33 The curved sides are perfectly smooth, but the roughhorixontal bottom is 30 m long and has a kinetic frictioncoefficient of 0.20 with the wood. The iece of wood starts fromrest 4.0 m above the rough bottom
(a) Where will this woodeventually come to rest?
(b) For the motion from the initialrelease until the piece of wood comes to rest, what is the total amount of work done by friction?
During 0.15 s, a wheel rotates through an angle of 2.74 rad as a point on the periphery of the wheel moves with a constant speed of 2.16 m/s
A 55.0 kg sailor jumps from a dock into a 100.0 kg rowboat at rest beside it. what is the velocity of the sailor
A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
A 70 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.15 T field, At what time is the peak emf first reached
A proton and an electron are held apart a distance of one meter, Calculate the electric force F between them and Show the electric force vector on each of them
q1. a boat crosses a river of width 115 m in which the current has a uniform speed of 1.39 ms. the pilot maintains a
The electric potential at a position located a distance of 18.3 mm from a positive point charge of 8.50×10-9C and 13.3 mm from a second point charge is 1.10 kV
q1. a pet-store supply truck moves at 25ms north along a highway. inside a dog moves at 1.85ms at an angle of 35deg
Suppose the temperature of 4.72 L of ideal gas drops from 351 K to 275 K. (a) If the volume remains constant and the initial pressure is atmospheric pressure, Find the number of moles of gas
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.35 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push th..
A 14.0 capacitor and a 5.50 inductor are connected in series with an open switch. The capacitor is initially charged to 6.70 What is the angular frequency of the charge oscillations
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