Answer:
Destructive interference
Explanation:
Destructive interference occurs when two waves traveling along the same medium meet and cancel each other out. The resultant wave has a smaller amplitude than the individual waves. In this case, the maxima of two waves are 180 degrees out of phase.
Hence, the correct option is (A) "destructive interference"
False.
The force of friction is always the direction opposite of the object's movement.
Answer:
7.24 ohm
Explanation:
Let R1 and R2 are resistance of two resistors.
Emf=E=20 V
Current,I=2 A
Current,I'=10 A
We have to find the magnitude of the greater of the two resistances.
In series


By using the formula

...(1)
In parallel







Substitute the value




By using quadratic formula




Substitute the value


Hence, the magnitude of the greater of the two resistance=7.24 ohm
Answer:
Damian here! (ノ◕ヮ◕)ノ*:・゚✧
Stretching is used to improve range-of-motion (ROM) of a joint, but why? The most common reason is that the joint ROM is limited and is somehow affecting performance of a desired activity. Stretching is also used as a preventative measure.
Explanation:hope this helps? :))
Lithium-Dull
Sodium-Dull
Potassium- Dull
Rubidium- Dull
Cesium- Both
Francium- Shiny