-- Bob covered a distance of (32m + 45m) = 77 meters.
-- His displacement is the straight-line distance and direction
from his starting point to his ending point.
The straight-line distance is
D = √(32² + 45²)
D = √(1,024 + 2,025)
D = √3,049 = 55.22 meters
The direction is the angle whose tangent is (32/45) south of east.
tan⁻¹(32/45) = tan⁻¹(0.7111...) = 35.42° south of east.
Answer:
Explained below.
Explanation:
In electric heaters, the wire used is nichrome wires and it can resist oxidation. Whereas, in electric bulbs, wires used are called tungsten and they undergo Oxidation begins at high temperatures between 500°C and 1200°C. Therefore, we would can't interchange because tungsten wires need a protective film/inert gas to withstand the high temperatures so that the wires don't get weak and break.
Answer:
option (a)
Explanation:
The magnetic field is produced by the electric current, and the direction of magnetic field is given by the Maxwells' right hand rule.
The magnetic field is also be produced by the time varying magnetic fields.