When two vectors u and v act in opposite directions to each other they have a resultant of 10 units. When they are perpendicular to each other they have a resultant of 50 units. What are the magnitudes vectors u and v?

A) |u| = 40 units and |v| = 30 units
B) |u| = 10 units and |v| = 30 units
C) |u| = 20 units and |v| = 30 units
D) |u| = 30 units and |v| = 30 units

Which type of microscope would allow the viewer to see ribosomes inside a cell?

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?