A bar 1.0 m in length and located along x-axix moves with a speed of 0.75 c with respect to a stationary observer. The length of the bar as measured by the stationary observer is
The potential difference across the conductors should be maintained constant by connecting the ends of wire to the terminal of a device called a source of
How would the two vectors of the same magnitude have to be oriented. If they were to be combined to give a result equal to a vector of the same magnitude.
A wire of 100 mm length and 1 mm2surface area stretches 10 mm under a load of 60 N. A second wire of same material, with half the diameter of the first wire is stretched by the same load. What is the extension in the second wire?