A sailor in a boat, which is going due east with a speed of 8m/s observes that a submarine is heading towards north at a speed of 12m/s and sinking at a rate of 2m/s.The commander of submarine observes a helicopter ascending at a rate of 5m/s and heading towards west with 4m/s.Find the speed of the helicopter with respect to boat.
22
Aug
A sailor in a boat, which is going due east with a speed of 8m/s observes that a submarine is heading towards north at a speed of 12m/s and sinking at a rate of 2m/s.The commander of submarine observes a helicopter ascending at a rate of 5m/s and heading towards west with 4m/s.Find the speed [...]
A beam of electrons passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move
18
Aug
A beam of electrons passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move A beam of electrons passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off and the same magnetic field [...]