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An airplane is flying at 165.1mi/h (its speed in still air) in a direction such that with a wind of 64.4mi/h blowing from east to west, the airplane travels in a straight line southward.
a) What must be the plane's heading (direction) for it to fly directly south?
b) If the plane has to go 291mi in the southward direction, how long does it take?
A football game begins with a kickoff in which the ball travels a horizontal distance of 45 yd and lands on the ground. what is the initial speed of the ball in this case
Two loudspeakers emit sound waves along the x-axis. What is the phase difference between the speakers
An object is placed to the left of a lens, and a real image is formed to the right of the lens. How far from the lens is the object
When the front of the train passes the worker. A 1500 kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 18.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision.
The world's largest refracting telescope is operated at the Yerkes Observatory in Wisconsin. It has an objective of diameter of 1.02 m. What is the minimum separation of two objects on the ground
A krypton laser produces a cylindrical red laser beam 3mm in diameter with 4W of power. What is the light intensity on a wall 5.0 m away from the laser.
An ice cube slides from rest without friction down a long inclined ramp that makes an angle of 20.0o with the horizontal. What is the speed of the cube
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.90 104 W when moving at a constant speed of 15 m/s. What is the tension in the tow rope pulling the log
Helium-Neon laser: "Lambda"= 632.8nm. We can observe the first order maximum at "theta"= 25 degrees. What is the second order maximum angle
A coin placed on a turntable rotating at 37.9 rev/min will stay there if its center is placed no further than 8.5 cm from the axis of rotation. find the coefficient of friction between the coin and turntable
Find the radius R of the star Rigel, the bright blue star in the constellation Orion, which radiates energy at a rate of 2.7×1032 W
Find the speed of light in flint glass (refraction index 1.67). Use 2.99792x10^8 m/s for the speed of light. Find the speed in light in zircon
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