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Problem: Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the two naturally occurring electrons is removed. The radius of the orbit is 2.65 x 10-11 m.
Part A: Determine the magnitude of the electron's centripetal acceleration.
Please explain each step and equations used to find the magnitude of the electron's centripetal acceleration.
Two waves traveling on a string in the same direction both have a frequency of 236 Hz, a wavelength of 0.40 m, and an amplitude of 0.14 m. What is the phase difference between the two waves
A step-up transformer has 24 turns on the primary coil and 780 turns on the secondary coil. what input current and voltage are needed
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.53x1011 m apart. What is the mass of the smaller star
A 5 ohms resistor is in SERIES with a 25 ohms resistor, and the combination is connected to a 10V battery. What is the equivalent resistance of the series combination
A football player, starting from rest at the line of scrimmage, accelerates along a straight line for a time of 1.5 s. Then, through a negligible amount of time, he changes the magnitude of his acceleration, he continues in the same direction for ano..
a student is performing an experiment with two identical small metal balls a and b.initially ball a contains 6.0-?c net
A 870.0 kg car travelling on a level road at 27.0 m/s(60.5 mi/hr) can stop, locking its wheels, in a distance of 61.0 m(200.1 ft). Find the size of the horizontal force which the carapplies on the road while stopping.
A particular radioactive source produces 175 mrad of 1 MeV gamma rays per hour at a distance of 1.0 meter. Find how long could a person stand at this distance before accumulating an intolerable dose of 1 rem
An extension cord made of two wires of diameter 0.129cm (no. 16 copper wire) and of length 2.2m is connected to an electric heater which draws 17.0 A on a 120V- line, How much power is dissipated in the cord
With what force F should she pull down on the rope to accelerate herself and platform upward at a rate of 0.77 m/s2.
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
A copper rod is 30 cm long and has a cross-sectional area of 1 cm^2. The coefficient of thermal conductivity is 100 W/mK. what is the heat flow along the rod
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