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An airplane flies at airspeed (relative to the air) of 470 km/h . The pilot wishes to fly due North (relative to the ground) but there is a 64 km/h wind blowing Southwest (direction 225?).
In what direction should the pilot head the plane (measured clockwise from North)?
A rifle is aimed horizontally at a target 30 m away. the bullet hits the target 1.9 cm below the aiming point. a.) What are the bullet's time of flight and b.) its speed as it emerges from the rifle?
It's possible to use the ideal-gas law to show that the density of the earth's atmosphere decreases exponentially with height, Determine the value of z0
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.20 m. The mug slides off the counter and strikes the floor 0.60 m from the base of the counter.
A rotating cylinder about 16 {rm km} long and 7.40 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration due to gravity as on Earth.
A block whose weight is 41.0 N rests on a horizontal table. A horizontal force of 36 N is applied to the block, what will be the block's acceleration? (If not, enter 0.)
The horse on a carousel is 4.0 m from the central axis. How long does it take the horse to go around twice
Two blocks of masses 1.0 kg and 3.0 kg connected by a spring rest on a frictionless surface. what is the velocity of the second
A quarterback takes the ball from the line of scrimmage, runs backwards for 15 yds, then runs sideways parallel to the line of scrimmage for 13 yds. Find the total magnitude of the football resultant displacement
A hunter who is a bit of a braggart claims that from a distance of 1.7 km he can selectively shoot either of two squirrels who are sitting 8.0 centimeters apart on the same branch of a tree. Determine the diameter of the pupils of his eyes
Two negative point charges are separated by 11.0cm and feel a mutual repulsive force of 1.85?N . The charge of one is three times that of the other. How much charge does each have? in nanocoulumbs
A 0.11-kg balloon is filled with helium(density = 0.179 kg/m3). If the balloon is a sphere witha radius of 5.0 m, what is the maximum weight it can lift
A 6-turn coil 1.9 centimeter in diameter is rotated at 17rev/s about an axis perpendicular to a uniform magnetic field. Evaluate what is the magnetic field strength
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