Students are collecting data as they control the toy helicopter shown. The helicopter has a mass m and must exert a thrust of power P0 to initially move upward with a constant speed v0 . The students then cause the helicopter to exert a thrust so that a net force Fnet=2mg accelerates it upward. As the helicopter is accelerating, it has a thruster power Pf , and as it passes a height h0 it has a speed of 3v0 . The ratio PfP0 is most nearly

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

Avalue that describes how heavy an object is and is related to the force of gravity is

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear