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A roller coaster moves 200 ft horizontally and then rises 135 ft at an angle of 30.0° above the horizontal. Next, it travels 135 ft at an angle of 40.0° below the horizontal. Use graphical techniques to find the roller coaster's displacement from its starting point at the end of this movement.
A basketball player grabbing a rebound jumps 70.80 cm perpendicularly. How much total time (ascent and descent) does the player spend (a) in the top 11.2 cm of this jump and (b) in the bottom 11.20 cm? Do your results describe why such players see..
An airplane is flying with a velocity of 95m/s at an angle of 19.0^circ above the horizontal. When the plane is a distance 124m straight above a dog that is standing on level ground, suitcase drops out of luggage compartment.
Andy (mass 77kg ) uses a 2.7m -long rope to pull Bob (mass 61kg ) across the floor (μk=0.20) at a constant speed of 1.0m/s. What is the mass of the rope
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. What is the length of the rotating string
A fisherman reels in 15.0 m of line while landing a fish, How much work does the tension in the line do on the fish
Tammy leaves the office, drives 64km due north, then turns onto a second highway and continues in a direction of 33 degrees north of east for 79 km. What is her total displacement from the office
Two point charges, +3.18 µC and -6.65 µC, are separated by 1.13 m. What is the electric potential midway between them
Explain why should the Bryson Corporation act ethically in this situation? Illustrate what are the potentially negative representations of acting unethically?
A bucket filled with water has a mass of 64.9 kg and is attached to a rope that is wound around a 0.4 m radius cylinder. Illustrate what torque does the bucket produce around the center of the cylinder?
A convex mirror with a focal length of 0.25 m forms a 0.081 m tall image of an automobile at a distance of 0.23 m behind the mirror
A 54 N crate is suspended from the left end of a plank. The plank weighs 21N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.3m from the left end of the plan..
A 9.7 diameter circular loop of wire is in a 0.68T magnetic field. The loop is removed from the field in 0.25sec. Assume that the loop is perpendicular to the magnetic field. What is the average induced emf?
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