Complete the following sentence correctly. infrared light is a form of that is
a. radiation; visible
b. radiation; invisible
c. convection; visible
d. convection; invisible

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

The dot diagram represents the motion of the motorcycle as it moves from left to right

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?