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A wave on the surface of the ocean with wavelength 44m is travelingeast at a speed of 18m/s relative to the ocean floor. If on, this stretch of ocean surface, a powerboat is moving 15m/s (relative tothe ocean floor), how often does the boat encounter a wave crest,if the boat is traveling a) west and b) east?
Please show formulas.
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Illustrate at what height above the surface of the earth does the balloon have a speed of 8.90 m/s?
A coin is located 29.6 cm to the left of a converging lens (f = 21.6 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses
A projectile is launched straight up at 59.5 m/s from a height of 76 m, at the edge of a sheer cliff. Find the maximum height of the projectile above the point of firing
A compound microscope has the objective and eyepiece mounted in a tube that is 18.0 cm long. The focal length of the eyepiece is 2.28 cm, what is the focal length of the objective
An electron is in an angular momentum state with l=3, What is the lenght of the electron's angular momentum vector
What is the wavelength of the reflection minimum?
A pendulum bob of mass m is attached to a massless string of length L. If the bob is released from rest at a horizontal position, What is the tangential acceleration of the bob
A 55-kg vampire and 171-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 5 m/s and is directed upwards, while the vampire velocity at the moment of the collisi..
What must be the thickness of the liquid layer if normally incident light with? = 504 nm in air is to be strongly reflected
A telephoto lens can focus on objects located between infinity and closer. To focus, How far away is the closest object that it can capture
An artificial satellite circling the Earth completes each orbit in 130 minutes. (The radius of the Earth is 6.38 106 m. Find the altitude of the satellite
A skier finds that she must give hersel a push to get started down ski slopes with angles less than 8 degrees. What is the coefficient of static friction between the skis and the snow
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