A spotlight in jewellers shop shines light on a diamond ring at an angle 30 degree to the perpendicular. At what angle is the light refracted through the stone?

Use the data provided to calculate the gravitational potential energy of each cylinder mass. round your answers to the nearest tenth. 3 kg: kj 6 kg: kj 9 kg: kj

Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutting out a square from each of the four corners and bending up the sides. find the largest volume that such a box can have.

What’s #16 asking me and how do i solve it?