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the tires on a new compact vehicle have a diameter of 20 feet and are warranted for 55000 milesa find the angle through
lasers have been developed that can generate pulses of light that are only 10 fs femtoseconds long suppose lamdar
in cesium atoms z 55 the 55th electron has principle quantum numbernbspn6nbspand is outside closed shells which
a car has a mass of 1000 kilogram its at the top of a 10o hill therefore if you were to draw a triangle the base of the
an electron and a proton attract each other with a 1 r2electric force just like the gravitational force assume that an
a ball is tossed in the air and released it moves up reverses direction falls back down again and is caught at the
magnetic resonance imaging mri is a medical technique for producing pictures of the interior of the body the patient is
a concave mirror has a focal length of 325 centimeter the distance between an object and its image is 463 centimeter
determine the radius of an electron orbit when it moves perpendicular to a magnetic field of 050 t with a speed of 627
a light bulb is wired in a series with a 137 ohm resistor and they are connected across a 120 volt source the power
it is desired to construct a solenoid that will have a resistance of 460nbspohmnbspat 20degc and produce a magnetic
a constant force is applied to an object causing the object to accelerate at 10ms2 find what will the acceleration be
a 50 kilogram person is ice-skating due north with a velocity of 58 ms when he collides with a 42 kilogram kid the
a boat takes 4 hours to travel 30 kilometer down a river then 8 hours to return determine how fast is the river flowing
a rocket-powered hockey puck has a thrust of 15 newton and a total mass of 10 kilogram it is released from rest on a
two slits are illuminated by light that consists of two wavelengthsnbsp one wavelength is known to be 436 nmnbsp on a
a nonreflecting single layer of a lens coating is to be deposited on a lens of refractive index n178 find the
a thin film of mgf2n138 is deposited on glass thus that it is anti reflecting at a wavelength of 580 nanometer under
a spherical mirror is polished on both sides when used as a convex mirror the magnification is 17 find the
on a part-time job you are asked to bring a cylindrical iron rod of length 930 centimeter and diameter 300 centimeter
a u-shaped tube open to the air on both ends contains mercury water is poured into the left arm until the water column
a research submarine has a 300 centimeter diameter window 810 centimeter thick the manufacturer says the window can
a 1303 kilogram car experiences an impulse of 300000 nbulls during a collision with a wall if the collision takes 043
a string of length l vibrates at its fundamental frequency the amplitude at a point frac14l from one end is 540
a violin string is 240 centimeter long it sounds the musical note a 440 hertz when played without fingeringfind how far