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A particle of mass 3 kilogram is attached to the end of a ring of length 4meter, whose other end is fixed. Determine the least horizontal speed with which it must be projected from the lowest point, if it is to describe complete vertical circles. Also determine the tension in the string at the instant of projection?
compare the electric force holding the electron in orbit (r=0.53*10^-10m) around the proton nucleus of the hydrogen atom, What is the ratio of these two forces
An 0.8kg baseball with an initial velocity of 40m/s is hit with a baseball bat so that its recoil velocity is 60m/s in the exact opposite direction. what is the average force the bat puts on the ball
How much current does an immersion heater draw from the car
A hunter who is a bit of a braggart claims that, from a distance of 1.5 km, he can selectively shoot either of two squirrels who are sitting 14 cm apart on the same branch of a tree. Determine the diameter of the pupils of his eyes
Two rods AB and BC have charges +2Q and -2Q uniformly distributed on them. They are bent in the shape of arcs of a circle and joined at B. Find the linear charge density on rod AB. Find the electric field at the midpoint between A and C.
What is the mass of the metastable particle after the collision, in units of proton mass and determine in advance the trajectory of any individual particle?
A balloon containing 2.0 m^3 of hydrogen gas rises from a location at which the temperature is 22 degrees Celsius, what is the new volume of the balloon
A 3.0 kg block is traveling in the -x direction at 5.0 m/s, and a1.0 kg block is traveling in the +x direction at 3.0 m/s. Find the velocity VCM of the center of mass. Subtract VCM from the velocity of each block to find the velocity of each block in..
An electron is in the fifth Bohr orbit of hydrogen. Find the speed of the electron. Find the current corresponding to the motion of the electron
An in compressible fluid is flowing through a pipe with a constriction. The wide section is 2.00 cm in diameter and is at the top of the pipe. What is the diameter of the narrow section for the pressure of the fluid in the narrow section to equal t..
A 1.10 kg mass is at the center of a uniform spherical shell of mass 1.09 1020 kg and radius 1.05 106 m. Find the resultant gravitational force on the mass
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
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