Question: a 0.50 m wave has a frequency of 686 hz. what is the speed of the wave?

answer choices:
(a) 170 m/s
(b) 1,370 m/s
(c) 340 m/s
(d) 690 m/s

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope