Asurface wave is a combination of what two waves?

a. two transverse
b. a transverse and longitudinal
c. a transverse and light
d. two longitudinal

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.