Aradar station detects an airplane approaching directly from the east. at first observation, the range to the plane is 375.0 m at 43.0 ° above the horizon. the plane is tracked for another 123.0 ° in the vertical east-west plane, the range at final contact being 797.0 m. what is the magnitude of the displacement of the plane (in meters) during the period of observation?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.