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A truck driver delivering office supplies downtown travels 3 blocks south, 3 blocks west, and finally nine blocks south. What are the magnitude (in blocks) and the direction of the driver's displacement? (Enter an angle among 0 and 90°.)
At a distance of 4.32m from a siren, the sound intensity is 3.75 x 10-2 W/m2. Assume that the siren radiates sound uniformly in all directions; find out the total power radiated.
a 98-g piece of copper is heated in a furnace to a temperature tc. the copper is then inserted into a 150-g copper
absorberdensity pnbspnbspattenuation coefficient mup cm2gmuhalf value layer hvl
a cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. as it rises to a
The density of gold is 19 times that of water. If you take a gold crown weighing 30N and submerge it in water, what will the buoyant force on the crown be
A broad beam of light of wavelength 642 nm is incident at 90° on a thin, wedge-shaped film with the index of refraction 1.50. An observer intercepting light transmitted by the film sees 17 bright and 16 dark fringes along the length of the film. B..
A 3.0 kg particle with velocity v = (5.0 m/s)i - (6.0 m/s) j is at x = 3.0 m, y = 8.0m. It is pulled by a 7.0 N force inthe negative x direction. What torque about the origin acts on the particle
A projectile is fired straight up with a speed 64.4 m/s at a latitude 29o in the Northern hemisphere. find the magnitude of the deflection
A rope having a total mass of 0.4 kilogram and total length 4 meter has 0.6 meter of the rope hanging vertically down off a work bench. Determine how much work must be done to place all the rope on the bench
two streams of water flow through the u-shaped tubes shown. the tube on the left has cross-sectional area a and the
The student realizes that the spring demonstrates SHM with the attached mass of 255.0 g. The student is next asked to calculate the period of oscillation, T
An electric motor with a power of 3W is used to lift a .2 kg mass a height of 0.5 meters in 3.0 seconds, since total energy must be conserved
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