You are on a walkway moving at 3 m/s forward. What would happen if you stepped off onto the floor? What if you stepped onto another walkway moving with the same velocity?

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.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount