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City lies directly west of city . When there is no wind, an airliner makes the 6130 round-trip flight between the two cities in 6.50 of flying time while traveling at the same speed in both directions. When a strong, steady wind is blowing from west to east and the airliner has the same air speed as before, the round-trip takes 6.70 of flight time. How fast is the wind blowing?
A uniform magnetic field , with magnitude 1.2 mT, is directed vertically upward throughout the volume of a laboratory chamber. What magnetic deflecting force acts on the proton as it enters the chamber
In the Compton Effect, momentum conservation applies so total momentum of the photon and the electron is the same before and after the scattering occurs.
The nonconducting spherical shell is replaced with a thin metal spherical shell of diameter 8 cm and a charge of 1.00, What is the net electric field at 50 cm on the positive x axis
A slab of a thermal insulator with a cross-sectional area of 110{\rm cm^2} is 2.90{\rm cm} thick. how much heat flows through the slab
An undersea research chamber is spherical with an external diameter of 3.70m. What is the buoyant force on the chamber
David is driving a steady 24 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant while David passes. How far does Tina drive before passing David.
The temperature of 3.00 mol of an ideal diatomic gas is increased by 47.0°C without the pressure of the gas changing. What is the change in the internal energy for the gas
A 280 block on a 58 long string swings in a circle on a horizontal, frictionless table at 90.0 . What is the speed of the block.
A neon sign requires 10000 V for its operation. It operates from a 220 V receptacle. What must be the turns ratio Ns/Np of the transformer
A 46.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
What is rms speed of the atoms at temperature
A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. what is the emissivity of the sphere
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