Arelaxed biceps muscle requires a force of 25.0 n for an elongation of 3.0 cm; the same muscle under maximum tension requires a force of 500 n for the same elongation. the muscle is assumed to be a uniform cylinder with length 0.200 m and cross-sectional area 50.0cm2.

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

In physics the desire of an object to keep doing what it is doing is termed?

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?