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Q1. Two point charges 2.40 nC and 6.50 nC are 0.100 m apart. Point is midway between them; point is 8.00×10-2 m from and 6.00×10-2 m from. Take the electric potential to be zero at infinity. Find work completed by the electric field on a charge of 2.5 that travels from point to point.
Q2. A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
Find out altitude of the airplane
A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
To store the energy produced in 1hour by a 110 electric power plant, how many cubic meters of water will have to be pumped from the lower to the upper reservoir? Suppose the upper reservoir is 510 meters above the lower one, and we can neglect the sm..
A 72 person stands on a uniform ladder 4.5 long, that weighs 75. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force.
Calculate torques about an axis
The effectual coefficient of kinetic friction is 0.37. Compute the work done by the man on the piano.
An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm while the potential difference between them is 340 V. How numerous excess electrons does this have here.
While rearranging a dorm room, a student does 276 J of work in moving a desk 1.7 m. What was the magnitude of applied horizontal force.
What is an average power output of the laser. What is the rms value of the electric field in the beam.
Find out the effective coefficient of kinetic friction
In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
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