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Determine the drag force on the runner during the race. Suppose that the cross section area of the runner is 0.72 m2 and the density of air is 1.2 kg/m3.Express your answer to two significant figures and include the appropriate units.
A cat is brought into a vets office you need to find itscenter of gravity. what is the total weight of the cat
A physicist trying to demonstrate destructive interference stands 2.7m directly in front of a speaker. A second speaker produces identical (coherent) 600Hz tones.
A 0.2-kg steel ball is dropped straight down onto a hard, Determine the magnitude of the impulse delivered to the floor by the steel ball
Speedboat A negotiates a curve whose radius is 198 m. Speedboat B negotiates a curve whose radius is 290 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A light bulb operating at 110 V draws 1.40 A of current. What is its resistance?
A thin spherical shell of mass 0.300 kg and diameter 0.190 m is filled with alcohol. It is then released from rest on the bottom of a pool of water. Find the acceleration of the alcohol filled shell as it rises toward the surface of the water.
A perscription for a corrective lens calls for +1.5 D. The lensmaker grinds the lens from a "blank" with n=1.55, What should be the radius of curvature of the other surface
a sprinter accelerates uniformly from rest to a speed of 9ms while traveling 18m.a what was thier acceleration?b what
Two identical batteries of emf ε = 9.17 V and internalresistance r = 0.279 Ω are to be connectedto an external resistance R, either in parallel (Fig.27-52) or in series (Fig. 27-53).
A charged particle moves in a region of uniform magnetic field along a helical path, Obtain the speed of this particle as it moves along this path
The y-component of the radiated magnetic field of a plane electromagnetic wave moving in the z-direction is given by By(t) = (1.20 ?T)sin [(2? rad) (z /340 m ? t /1.13 ?s)],
The fundamental frequency of a closed pipe is 108 Hz. Find the next higher harmonic for this tube
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