Challenge: you are at the grand canyon, standing at the edge of a ledge 1.857 m high. you have a
mass of 61 ke you decide to take a selfie to share with your science teacher when you get home which
causes you to
a. how much gravitational potential energy do you have standing at the edge of this cliff?

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray