Velocity of the plane relative to the earth
A plane is headed due west with an air speed of 224 m/s. The wind blows south at 15.0 m/s. Find the velocity of the plane relative to the earth.
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A 1.5 kg box moves back and forth on a horizontal frictionless surface between two springs. By how much will the box compress the weaker spring?
You throw a snowball at an angle of 30.0° below the horizontal from the roof of a building that is 95.0 m above flat ground. The snowball hits the ground a distance of 45.0 m from the base of the building. Assume free fall with up as positive,
A golf ball is struck with a five iron on level ground. It lands 95.8 m away 4.05 s later. What was the direction of the initial velocity? Give the angle counterclockwise relative to the horizontal.
A harmonic wave is traveling along a rope. The oscillator that generates the wave completes 43.0 vibrations in 28.5s. A given crest of the wave travels 410cm along the rope in a time period of 11.4s.
A car of mass m=1350 kg is parked on a slope of angle =41.0o facing uphill. Calculate the normal force exerted by the road on the front and rear wheels.
Coherent light with wavelength 602 passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central bri
Mary weighs 521 N and she walks down a flight of stairs to a level 5.5 m below her starting point. What is the change in Mary's potential energy?
A parallel-plate capacitor has a plate area of 0.2 m2 and a plate separation of 0.1 mm. To obtain an electric field of 2.0 × 106 V/m between the plates, the magnitude of the charge on each plate should be: What is the charge (in ) on positive
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He advocated a generalized natural treatment not directed against a specific disease that had to be eliminated but towards the sick person's vital force,
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