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Two spherical objects are separated by a distance of 1.66 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As a result, each object experiences an electrostatic force that has a magnitude of 1.01 × 10-20 N. How many electrons did it take to produce the charge on one of the objects?
A block of mass m slides along a level surface. The coefficient of kinetic friction between the block and the surface is ?. If the block has an initial speed v0, how far will it travel before coming to rest? Show how you arrived at your answer. Repea..
you have a telescope that has an objective lens with a diameter of 60.0 mm and has a focal length of 150.0cm. what angular resolution in radians or degrees is achieved
A standing observer perceives a train whistle to have a frequency of 300 Hz. compute the frequency of the sound waves emitted from the train
a car travels 20km at 15degrees north of west then turns and goes 30km at 10degrees east of south . find the carss
The donor paid gift tax of $14,000 on the transfer. If Laura later sells the property for $110,000, illustrate what is her recognized gain or loss?
One of the asteroids, asty, looks like an elongated potato. Surprisingly it has a tiny (compared to asty) spherical moon! Find the acceleration of gravity on the surface of this little moon
An ambulance is generating a siren sound at a frequency of 1,800 Hz. The velocity of sound is 335.0 m/s. The observer is traveling at a velocity of 25.00 m/s away from the ambulance and the ambulance is traveling at a velocity of 28.00 m/s away from ..
Before beginning a long trip on ahot day, a driver inflates an automobile tire to a gauge pressureof 2.60atm at 300 K. what is the temperature ofthe air inside the tire
A 78.3?kg bungee jumper is enjoying an afternoon of jumps. The jumper's first oscillation has an amplitude of 10.3m and a period of 4.75s. find the spring constant of the bungee cord
In an amusement park ride called The Roundup, passengers stand inside a 16.0m -diameter rotating ring. how much force does the ring push on her at the top of the ride
Three capacitors in series, with capacitance 3.0micro Farads,5.0 and 6.0 are connected in series to a 21.0V independent voltagesource. what charges are on the plates of each capacitor
One of the many isotopes used in cancer treatment is gold 19879Au, with a half-life of 2.70 days. Determine the mass of this isotope
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