An airplane flying horizontally at a constant height of 1000 m above a fixed radar station. at a certain instant the angle of elevation θ at the station is π 4 radians and decreasing at a rate of 0.1 rad/sec. what is the speed of the aircraft at this moment?

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Which atomic model was proposed as a result of j. j. thomson’s work?