A205-kg crate is pushed horizontally with a force of 720 n. if the coefficient of friction is 0.20, calculate the acceleration of the crate. m/s2

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

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.

Asher cycles 12 miles in 16 hours. what is his speed?