Aman is walking on the deck of a ship in the north-east direction at a speed of 2 km/h. the ship is moving east at a speed of 4 km/h. find the speed, in km/h, of the man relative to the surface of the water.

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?