Friction is a force. A resistance force that tries to slow down and stop objects in motion. The difference between friction and air resistance is that friction acts on surfaces. For example, if I were skateboarding on a rough surface, more friction would occur so I would travel slower. If I were skareboarding on ice, I would go faster because there is much less friction to slow me down. Hope that helps:)
Answer:
Explanation:
In standing wave pattern we find region of nodes where vibration is minimum or cold spots . The distance between any two consecutive node is half the wave length . There are 5 cold spot or node in between which is equal to 4 half wave length .
width of oven = 4 x half wave length
= 4 x (12 / 2 )
= 24 cm
Answer: Oxygen
Explanation: Oxygen is the most common element in the human body. It makes up 65% of the body.
They should be bigger as if it is hot the tracks will expand as it is made of metal and then there is more room for it to expand or contract
C) The longer the line, the greater the magnitude of the vector. As for the direction, just think of a compass.
