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1. Calculate the total number of electrons in a coin of mass of 3.00 grams made of pure copper. Each copper atom has 29 electrons, its atomic weight is 63.5 grams, and density is 8.9 gram / cm^3.
a. If the number of electrons in one of these coins is reduced by 1%, what will be the total positive charge on the coin?
b. If two coins charged in this way (i.e each has a deficit of 1% of the electron) are placed 50 cm apart, what will be the force of repulsion between them?
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questionone of ways that a forensic scientist can figure out the make and model of a car from a ldquohit and runrdquo
The mass of a robot is 5200 kg. This robot weighs 3750 N more on planet A than it does on planet B. Both planets have the same radius of 1.33 107 m. What is the difference among MA - MB in the masses of these planets?
A river flows due east at 1.34 m/s. What is the velocity of the boat as viewed by an observer on the shore
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An experimentalist wishes to probe the nucleus which can be approximated as a hard sphere having a radius of 10^-13 cm. How large must the probe beam intesity be if the target consists of 10^10 nuclei
Find the magnitude of , the acceleration of the car after the brakes are applied. Express your answer in terms of some or all of the variables d, t, and v.
In a diffraction experiment, light of 600. nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. find the wavelength of the light from the second source
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