Aguitar string of length l = 0.79 m is oriented along the x-direction and under a tension of t = 74 n. the string is made of steel which has a density of rho = 7800 kg / m3. the radius of the string is r = 8.5 x 10-4 m. a transverse wave of amplitude a = 0.0020 m is formed on the string. find the string tension.

Amarble, a bowling ball, a basketball, and a baseball are rolling across the floor at 10 m/s. which one has the greatest kinetic energy? the marble the bowling ball the basketball the baseball

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

Anybody wanna ? (picture included? )