a grin
if it goes back and forth 2x in 5 seconds, 50 times that is 50x5 or 250 seconds, aka 3 min 10 sec
one example is a yoyo it goes side to side and back and forth there is an example of a pendulum
A line that goes straight acrosswould be ahorizontal line.
it lands back at 7 again , a straight angle always lands it on the opposite number on the clock therefore when you turn it 1 straight angle it lands at 1 the if you do it again it goes back to 7
It is a straight line.
a grin
Windshield wipers.
Windshield wipers.
when a river winds back and forth, it is called meandering
AC (alternative current) goes back and forth (the flow of the current changes periodically) DC (direct current) has a continuous flow
it goes back and forth
it goes back and forth on a string and amuses people
if it goes back and forth 2x in 5 seconds, 50 times that is 50x5 or 250 seconds, aka 3 min 10 sec
Because the river want to turn 180 degree.
it goes back and forth really fast
what current goes back and forth, or oscillates, rather than traveling in only one direction
Only because it goes nowhere in picture