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As your plane circles an airport, it moves in a horizontal circle of radius 2500 meter with a speed of 400 km/h. If the lift of the airplanes wings is perpendicular to the wings, obtain at what angle should the plane be banked therefore that it doesn't tend to slip sideways?
Starting from rest, a 4.80-kg block slides 2.00 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is ?k = 0.436. Determine the work done by the friction force
A model rocket blasts off from the ground, rising straight upward with a constant acceleration for a time of 1.90s. What is the maximum altitude of the rocket
A small spherical insulator of mass 6.75 x 10-2 kgand charge +0.600 μC is hung by a thin wire of negligiblemass. A charge of -0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the wire makes anangle with the vertica..
A certain radioactive material has an atomic mass of 172 and a half-life of 505 years (take 1 yr = 365.25 d). What is the activity of 0.9 g of this material?
A boy coasts down a hill on a sled, reaching a level surfaceat the bottom with a speed of 7.1 m/s. how far does the sledtravel on the level surface before coming to rest
A cylindrical disk has volume 8.9810-3 m3 and mass 7.98 kg. The disk is floating on the surface of some water with its flat surfaces horizontal. The area of each flat surface is 0.636 m2. How far below the water level is its bottom surface
An advertisement claims that a centrifuge takes up only 0.127 of bench space but can produce a radial acceleration of 4900 at 8160 . Calculate the required radius of the centrifuge
a skier is gliding along at 4.0 ms on horizontal frictionless snow. he suddenly starts down a 14deg incline. his speed
An elastic cord is 69 cm long when a weight of 57 N hangs from it but is 70 cm long when the weight of 75 N hangs from it. What is the "spring" constant k of this elastic cord.
A mountain climber gains 897 m in elevation on a particular hike. Consider the climber's body as a heat engine, how much heat does the food supply
Consider a spherical conducting shell where the conductor has a netcharge Q on it with no charges in the cavity. Does the voltage varywithin the cavity from place to place? Explain why or why not.
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5. How far has the football traveled horizontally from its original position
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