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The Direction of the waves is not the key factor to the result. What is important is the synchronization of each Sine Wave with the other when they meet. Assuming that they are of the same FREQUENCY, if the Peaks are Synch'ed the Volume (amplitude) of the resultant wave is DOUBLED. If they are 180 degrees out of Synch (Phase), they cancel eachother out. Resultant perceived volume equals Zero.
a battery always produces a direct current.the electrons always travel from the negetiove to the positive terminal.But the direction of the current is the opposite that is from the positive to the negetive terminal.
The opposite direction. To stop a moving object requires an acceleration in the direction opposite its motion.
Friction always acts in the opposite direction, of the other object's motion.
By definition, friction is opposite of the direction of motion.
The Direction of the waves is not the key factor to the result. What is important is the synchronization of each Sine Wave with the other when they meet. Assuming that they are of the same FREQUENCY, if the Peaks are Synch'ed the Volume (amplitude) of the resultant wave is DOUBLED. If they are 180 degrees out of Synch (Phase), they cancel eachother out. Resultant perceived volume equals Zero.
yes
yes
It slows to a rest and then starts moving in the opposite direction at constant acceleration in that direction.
That is false. At least in America. Solid yellow lines are the means to separate traffic traveling in an opposite direction. A solid white line marks the outside edge of your lane, or the outside edge of the lane traveling in your direction. Meaning you'll either go into the shoulder, or off the road entirely, if you go over the solid white line.
No
No.
yes
Yes. If you are traveling eastward but slowing down, your acceleration would be westward.
The wavelength also changes.The product [ (frequency) times (wavelength) ] is the speed of a wave, which is constant.So in order for frequency to change, wavelength must change in the opposite direction, tokeep their product constant.
No.
No, because velocity includes direction as well as speed.In order for the velocities to be the same, they would have to go the same speed in the same direction.