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Question1
In an assembly operation a robot moves an object first straight upward and then also to the east, around an arc forming one-quarter of a circle of radius 4.80cm that lies in an east-west vertical plane. The robot then moves object upward and to the north, through one-quarter of a circle of radius 3.70cm that lies in a north-south vertical plane. Find out-
(a) The magnitude of total displacement of the object
(b) The angle total displacement makes with the vertical.
Question2
Drawing the plot of the binding energy per nucleon versus mass number. Classify the key features. What is the origin of these descriptions? Put your answer in terms of the semi-empirical mass formula and what you know about the properties of the nuclear force.
For a damped oscillator with a mass of 350 g, a spring constant 59.00 N/m and a damping coefficient of 89 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 30 cycles.
An object rotates about a fixed axis, and the angular position of a reference line on the object is given by ? = 0.60e8t, what are the magnitudes of the point's
Two pellets, each with charge 5 microcoulomb (1 microcoulomb = 0.000001 coulombs), are located 0.5 m apart. What is electrical force between the charges.
A sled is pulled with a horizontal force of 20 N along a level trail, and the acceleration is found to be 0.35 m/s2. An extra mass m = 4.2 kg is placed on the sled. If the same force is just barely able to keep the sled moving, what is the coeffic..
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. determine how fast will the disk be turning
An armadillo and Earth attract each other gravitationally. Which experiences the greater gravitational force, or do they experience the same force magnitude?
In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. How much force does the curler exert on the stone
A block of mass 0.25 kg connected to a spring with spring constant 34 N/m is oscillating on a frictionless horizontal surface. What is the total energy of the system
In a chase scene, a movie stuntman is supposed to run right off flat roof of one city building and land on another roof 1.7m lower. If the gap between the buildings is 4.4m wide, how fast must he run.
An object is placed in front of a convex mirror with a 22.6-cm radius of curvature. A virtual image half the size of the object is formed. At what distance is the object from the mirror
A particle is moving around in a circle and its position is given in polar coordinates as x = Rcos?, and y = Rsin?, derive the equation for centripetal acceleration
a 1.00 x 10^4 kg railroad car is rolling at 6 meters per sec. What is the cars speed just after gravel is loaded
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