A swimmer is capable of swimming at 1.4 ms-1 in still water a) how far downstream will he land if he swims directly across a 180m wife river
b) how long will it take him to reach the other side?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Ireally need this answer sombody fast fast

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant