A snail crawls at a speed of 0.0004 m/s. How long will ot take to climb a garden stick 1.6m high?​

Abaseball is thrown a distance of 20 meters. what is its speed if it takes 0.5 seconds to cover the distance

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.

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.