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A train moving with constant velocity travels 190 north in 11 and an undetermined distance to the west. The speed of the train is 36 . Find the direction of the train's motion relative to north. How far west has the train traveled in this time?
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. calculate the radius of a chamber
A convex mirror has a focal length of -39.0 cm. A 12.0 cm tall object is located 41.0 cm in front of this mirror. Using a ray diagram drawn to scale, determine the size of the image
compare the electric force holding the electron in orbit (r=0.53*10^-10m) around the proton nucleus of the hydrogen atom, What is the ratio of these two forces
A small immersion heater is rated at 352 W. Estimate how long it will take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
Two very small spheres are initially neutral and separated by a distance of 0.60 m. What is the magnitude of the electrostatic force that acts on each sphere
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
On a cool morning, when the temperature is 11 ^circC, you measure the pressure in your car tires to be 30.0 psi. After driving 20 mi on the freeway, the temperature of your tires is 53 ^circC.
With its wheels locked, a van slides down a hill inclined at 38.0 to the horizontal. Find the acceleration of this van if the hill is icy and frictionless
question1two charged pith balls are suspended on extremely light 102 strings. each has a mass 10g. in stability the
A four-turn circular wire coil of radius 0.565 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.340 T. what is the average induced emf in the wire during this time
29.0g of copper pellets are removed from a 300?Coven and immediately dropped into 110mL of water at 23.0?C in an insulated cup. What will the new water temperature be
Suppose for a brief moment the gas molecules hitting a wall stuck to the wall instead of bouncing off the wall. How would the pressure on the wall be affected
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