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A charge of 28.0 nC is placed in a uniform electric field
that is directed vertically upward and has a magnitude of
4.00 104 V/m. What work is done by the electric force when
the charge moves (a) 0.450 m to the right; (b) 0.670 m upward;
(c) 2.60 m at an angle of 45.0° downward from the horizontal?
Three nano coulombs (nC) are placed at a seperate corner of a square with each side measuring 3cm. The two charges located at opposite vertices are negative, and other given charge is positive. Calculate the force experienced by a fourth 3nC when place at the missing corner. What is it orbital period and what its radial acceleration?
What is the strength of the electric fold 1mm away from a 38uc
charge? la 24 charge is placed in this fold at this distance, what
will be the force on it.
The electric potential at a distance of 0.92m from a point charge is -8.41x10^5 V. what is the
quantity of the point charge?
An electron is traveling at 1.9x10 m/s when it enters an electric field that slows it. The field has a mag nitude of 6200 N/C. How far does the electron penetrate the field before it stops.
The spring has a spring constant of 1000 N/m. It is compressed 15 cm, then launches a 200 g block. The horizontal surface is frictionless, but the block's coefficient of kinetic friction on the incline is 0.20. What distance d does the block sail through the air?
A beam of light enters water at an angle of 60 degrees relative to the normal of the water surface . Find the angle of refraction?
Light passes from air into water . If the angle of refraction is 20° ,what is the index of refraction of the plastic?
The angle of incidence of a light ray on a mirror surface is 35 degrees. What is the angle between the incident and reflected rays?
A beam of light is incident on a plane mirror at an angle of 32 degrees relative to the normal line. What is the angle between reflected rays and the surface mirrors?
You pull a box using a rope, which is directed 30 degrees above the horizontal. You apply a constant force of 30 N, and you move the box 5 m along the ground. What work did you do in Joules?
momentum is conserved in a collision of two objects as measured by an observer on a uniformly moving train. show that momentum is also conserved for a ground observed
