A team of engineers has come up with a design for a bridge to connect an island to the mainland. Which engineering procedure should they perform first?
A)
The design has to be tested before the bridge is built.
B)
Calculate the cost of materials needed to build the bridge.
Make a small-scale model of the bridge and test its strength
D)
Start laying out the foundations and the framework of the bridge
oh

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box