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A small charge (q= 6.0 mC) is found in a uniform E-field (E= 2.9 N/C). determine the force on the charge.
Find the electric field acting on a 2.0 C charge of an electrostatic force of 10,500 N acts on the particle.
A small charge (q= 6.0 mC) is found in a uniform E-field (E= 2.9 N/C). determine the force on the charge.
Two-point charges are arranged on the x-y coordinate system as follows: q1= 4x10^-8 C at (0,3 m) and q2= -9x10^-7 C at (5,0 m). Find the electric origin at (0,0). Using the Pythagorean theorem calculate for the magnitude E of the resultant electric field.
A conducting sphere of raduis 8.0cm carries o uniform volume charge density of 500 NC/m3. What is the electric field in N/C at r= 3.0cm?
What is the total electric flux through a closed surface containing a 2.0 μC charge?
A particle of mass 3 Kg falls from rest at a point 5 m above the surface of a liquid which is in a container. There is no instantaneous change in speed of the particle as it enters the liquid. The depth of the liquid in the container is 4 m. The downward acceleration of the particle while it moving in the liquid is 5.5 m/s^2. (i) Find the resistance to motion of the particle while it is moving in the liquid. (ii) Sketch the velocity- time graph for the motion of the particle, from the time it starts to move until the time it reaches the bottom of the container. Show on your sketch the velocity and the time when the particle enters the liquid, and when the particle reaches the bottom of the container.
A car of mass 350 Kg is travelling at 30 m/s when it starts to slow down, 100 m from a junction. At first, it slows just using the air resistance of 200 N then, at a distance of s m from the junction, it slows using brakes, providing a force of 2000 N as well as the air resistance. Find the distance from the junction at which the brakes must be applied if the car is to stop at the junction.
A diver of mass 60 Kg dives from a height of 10 m into a swimming pool. Through the air there is resistance of 50 N a) Find the speed at which the diver enter the water b) Once in the water, the water provides an upward force of 2000 N. Find the greatest depth in water the diver reaches.
A positive point charge q1 at the origin and a negative charge q2 at x=2m. The resultant electric field is 10.8 i N/C at x=1m and -8 i N/C at x=3m. Find q1 and q2.
