Summary of Ranges and Uses of Waves in the EM Spectrum Wavelength Type of wave
Uses
longer than 30 cm
radio and TV
0.1 cm to 30 cm
Type Here
microwave ovens,
cell phones,
communication
satellites, radar
700 nm tol mm
infrared waves
Type Here
human sight
Type Here
Type Here
60 nm to 400 nm
ultraviolet light
Type Here
0.001 nm to 60 nm
Xrays
medical X rays, security
shorter than 0.1 nm
Type Here
killing cancer cells,
killing bacteria in food

Part a what is the area of triangle i? show your calculation. part b triangles i and ii are congruent (of the same size and shape). what is the total area of triangles i and ii? show your calculation. part c what is the area of rectangle i? show your calculation. part d what is the area of rectangle ii? show your calculation. part e rectangles i and iii have the same size and shape. what is the total area of rectangles i and iii? show your calculation. part f what is the total area of all the rectangles? show your calculation. part g what areas do you need to know to find the surface area of the prism? part h what is the surface area of the prism? show your calculation. part i read this statement: “if you multiply the area of one rectangle in the figure by 3, you’ll get the total area of the rectangles.” is this statement true or false? why? part j read this statement: “if you multiply the area of one triangle in the figure by 2, you’ll get the total area of the triangles.” is this statement true or false? why?

Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Which statements regarding efg are true? check all that apply.