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Three point charges +1nC, +2nC, -3nC are placed in two adjacent vertices and in the center of a square with 3 meter long sides, find electric field (magnitude and direction) and electric potential (magnitude and sign) in the empty vertices of the square. find total potential energy of the interaction between the charges. find force of interaction between the charges in the vertices.
a) At what angle (in degrees) should this strip be placed to yield an apparent focal spot size 2.5 mm x 1.5 mm. b) Using this size target, what angle is required to obtain a 2.5 mm x 2.5 mm apparent focal spot
The wavelength of visible light ranges from 400 {\rm nm} to 700 {\rm nm}. Find the ranges of this light's angular frequency
A vertical straight wire carrying an upward 26 A current exerts an attractive force per unit length of 9.0*10^-4 N/m on a second parallel wire 9.0 cm away
A Cylinder of nitrogen gas (N2, diatomic) at RTP is adiabatically compressed so the final volume is 1/12 the original volume. What is the final pressure and temperature of the gas
a pendulum is made with a 4 kg mass suspended at the end of a 75 cm thin rod. the pendulum started at an angle of 20
An object is in front of a converging lens (f = 0.21 m). The magnification of the lens is m = 4.8. Through what distance should the object be moved
You are pulling your friend in a sled in a straight line to the right at a constant speed. How far would the sled/ person travel in this time
A grating is made of five similar, uniformly spaced, narrow slits. For light of wavelength ? = 675 nm perpendicularly incident on the slits, What is the angular position of the first principal order when the first and fifth slits are covered
A 280g ball is dropped from a height of 1.6m , bounces on a hard floor, and rebounds to a height of 1.1m. What maximum force does the floor exert on the ball
Car A has two times the mass of car B, but only 0.4 as much kinetic energy. Find the ratio between the speeds of the two cars
Forming an equation.
The drive propeller of a ship starts from rest and accelerates at 2.60 multiply.gif 10-3 rad/s2 for 2.15 multiply.gif 103 s. Find the total angular displacement of the propeller
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