7. At what velocity will the box in Problem ó be traveling when it hits the ground?

Does heating a metal wire increase or decrease its electrical resistance? why?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

Why should the wavelength scale of spectroscope be calibrated