In a naval exercise, boat A is on the east side of an island and it maneuvers to within 2500 m of a mountain on the island. Boat A can launch projectiles with an initial speed of
250 m/s. If the western shoreline is horizontally 300 m from the mountain, what are the
distances from the western shore at which boat B can be safe from the projectiles of boat
A?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Which component of the earth’s atmosphere is decreased due to photosynthesis?

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc