Find the orthogonal projection of v onto the subspace w spanned by the vectors ui. (you may assume that the vectors ui are orthogonal.) v = 6 −3 9 −6 , u1 = 1 1 0 0 , u2 = 1 −1 −1 1 , "u3" = 0 0 1 1

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

In what direction does an applied force move an object

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)