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A uranium and iron atom reside a distance R = 43.90 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized. Calculate the distance r from the uranium atom necessary for an electron to reside in equilibrium. Ignore the insignificant gravitational attraction between the particles. answer in nm
What is the magnitude of the force on the electron from the uranium ion? answer in N
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. What is the maximum rotational speed at which the riders will not slide up the walls of the ride
An advertisement shows a 1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly-designed 79.7-hp (horsepower) engine, How much work is performed by the car on the airplane during this time
A machinist starts with three identical square plates but cuts one corner from one of them, two corners from the second, and three corners from the third. Rank the 3 plates according to the x coordinate of their center of mass, from smallest to large..
What will be the equilibrium temperature when a 223 g block of copper at 258 C is placed in the 178 g aluminium calorimeter cup containing 874 g of water at 13.2 C.
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. find The magnetic field at the center of this loop
At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 29.0 rad/s^2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns during an angle of 440 rad as it coasts to a..
A thin double-convex lens is intended to focus the image of an object onto a screen so that the image is life-sized on the screen. find the total distance between the object and the image
Coherent ligh of a wavelength 500nm passes through a narrow slit. In the single-slit diffraction pattern observed on a screen that is 4.0m from the slit, what will the width of the central maximum be
you are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
When a ceiling fan rotating with an angular speed of 5.6 rad/s is turned off, What is the moment of inertia of the fan
A lens that is "optically perfect" is still limited by diffraction effects. Suppose a lens has a diameter of 130mm, What is the linear width (diameter) of the central maximum at the focal distance of the lens
The end milling cutter has two teeth and its diameter = 15.0mm. Find out the feed rate and time to complete the cut.
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