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A Beryllium nucleus consists of 4 protons and 5 neutrons. Assume that the protons makes a square with 10 sides 10^-15m
a) What is the potential energy of the nucleus due to the electrical ones?
b) What is the potenial at one of the corners due to the other 3 charges?
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle
What is the tangential acceleration of a bug on the rim of a 7 in. diameter disk if the disk moves from rest to an angular speed of 76 revolutions per minute in 4 s.
Certain stars at the end of their lives are thought to collapse combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus.
Suppose that electrical energy costs about $0.098/(kW · hour), If the electric potential provided by the electric company was 120 V, what was the average current in all circuits in the author's house
Jone pulls her brother on a sled over a horizontal surface with force of 80N. The force is at an angle of 25 degree, determine the acceleration of the sled
define the initial velocity of the ball.
A soprano saxophone is an open pipe. If all keys are closed, it is approximately 65 cm long. Using 343 m/s as the speed of sound, find the lowest frequency that can be played on the instrument.
A 3.65 kg particle is located on the x-axis at xm =?8 m, find the coordinate of the center of mass of this two-particle system
An arrow is launched vertically upward from a crossbow at 97.9 m/s. Ignoring air friction, what is its instantaneous speed at the end of 10.0 s of flight? What is its average speed up to that moment? How high has it risen? What is its instantaneou..
The core of an optical fiber has an index of refraction of 1.27, What is the critical angle for total internal reflection at the core-cladding interface
A 12cm tall robin sits in a tree 1.500 m above a shiny lawn sphere with a diameter of 48.00 cm. How tall does the image of the robin appear as he sees his reflection? Use a ray diagram and the equations to locate and completely describe the image.
A hot-air balloon is ascending at the rate of 12 m/s and is 84 m above the ground when a package is dropped over the side. Explain how long does the package take to reach the ground?
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