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a locomotive of 60 tonne mass pull some carriages of total mass 240 tonne, a distance of half a kilometre up a 1 in 200 incline with an acceleration of 0.2ms^-2. if the overall rolling resistance is 5% of a normal reaction, what is the total work done?
What are the particles responsible for transferring electrical energy from a cell, through conducting wires in an electric circuit?
Acetylene gas is used in industrial works such as welding metals. The
temperature needed to weld is approximately 2200°C at 1500 psia. Calculate its
density at this given temperature and pressure in kgm per cubic meter
Find the electric field midway between a 2 -μC point charge which are 2.5 m apart.
What is the magnitude of the electric field at a distance of 1.5m from a point charge with q=3.5C?
Sphere A has a charge of +10.0 C.It is brought in contact with a neutral sphere B and then separated.Find the final charges on spheres A and B if the spheres have equal radius and if the radius of sphere B is twice the radius of sphere A
A square metal plate with a length of 0.20 m and with a charge of 9.7 x 10 -7 C.
Find the electric field of the square metal plate.
A race car makes one lap around a track of radius 60 m in 6 s. What is the average velocity of the car as it goes around the circular track? Round your answer to one decimal place.
We assume the existence of a uniform electric field E= 500 i N/C without specifying which charges are the source. To this field is added that of a point charge of 2 uc located at the origin. What is the resultant electric force acting on a charge of 5 uc located at the point (3m,4m)?
The answer is (4.66i + 2.88j)x10^-3 N but I'm not sure how they got it?
There is a point charge Q1 at x= 0 and a charge Q2 at x=d. What is the relationship between these charges if the resulting electric field is zero at the following points: a) x= d/2 b) x= 2d c) x= -d/2?
