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Q. A woman walks 252. m in the direction 65.0° east of north, then 212. m directly east.
(a) Find the final displacement from the starting point.
(b) How much greater was the distance she walked than her displacement?
A young man owns a canister vacuum cleaner marked "532 W [at] 120 V" and a Volkswagen Beetle, which he wishes to clean. what is the actual power delivered to the cleaner
A car is behind a truck going 25m/s on the highway. The car's driver looks for an opportunity to pass, guessing that his car can accelerate at 1.0m/s2. He gauges that he has to cover the 20-m length of the truck, plus 10m clear room at the rear of..
A toy car X of mass .200 kg moves along a frictionless surface with a velocity of .180 m/s. It collides with another toy car Y, with the mass .250 kg and a speed of .130 in the same direction.
q1. the student now starts moving a box up a 10.0deg incline keeping her 142 n forces directed at 27.0deg above the
A chair of weight 85.0N lies atop a horizontal floor; the floor is not frictionless. Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair
If a red laser light (He-Ne Laser) with a wavelength of 633 nm and a frequency of 4.739 *10^14 Hz, at what angle will the first order diffrection angle be
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine
The spring of the pressure gauge shown in has a force constant of 1 400N/m, and the piston has a diameter of 1.60cm. When the gauge is lowered into water in a lake, what change in depth causes piston to move in by 0.850cm.
Two identical particles, both of mass m and charge q, What is the speed of each particle when they are a distance 2d apart
The temperature near the top of Saturn's cloud layer is about 110K. The temperature at the top of earth's troposphere, at an altitude of about 20km, is about 220K. Calculate the rms speed of hydrogen molecules in both these environments
A silver wire of diameter 1.0 mm carries a current of 140 mA. How long (on average) does it take for a conduction electron to move 1.0 cm along the wire
The two surfaces of a plastic converging lens have equal radii of curvature of 25.0cm, Calculate the index of refraction of the plastic
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