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In CHEM122 we do an experiment where the charge of an electron may be determined. In this experiment, a current of 0.3 Amperes flows through a copper plating solution depositing 1.00 grams of copper metal onto an electrode from copper ions Cu++ in a solution of copper sulfate. Copper ions have a positive 2 charge. How many hours does it take for this plating?
A particular satellite was placed in a circular orbit about 155 mi above Earth, Determine the time required for one complete revolution
As morning sunlight falls on a tethered helium balloon, it expands from a volume of 1.10 cross 103 m3 to a volume of 1.17 cross 103 m3. how much does the helium's internal energy increase
The crankshaft in a race car goes from rest to 3480 rpm in 2.7s. What is the crankshaft's angular acceleration
As a laudably skeptical physics student, you want to test Coulomb\'s law, As expected, the predictions of Coulomb\'s law are well confirmed, What is the magnitude of the force
A 1050 kg car is traveling at a speed of 25 m/s when the driver sees that there is a tree across the road. how far does the car travel before it comes to a stop
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
A uniform magnetic field B is perpendicular to the plane of rotation. What is the potential difference between the ends of the bar
an electron, proton and an alfa particle, accelerated trough the same potential difference, enter a region of uniform magnetiv field, what are the radii of the electron and alfa particle path
q1. physics instructor wants to produce a double-slit interference pattern large enough for her class to see. for the
An ideal gas in a container is at a temperature of 70.6°C. What is the average translational kinetic energy of a gas molecule in the container
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 x 10^-6 C, Find q1 and q2
A small rubber wheel on the shaft of a bicycle generator presses against the bike tire, What is the peak emf produced by the generator at the end of 4.64 s
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