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Friction is a very helpful thing and with out it you couldn't move, speed up, slow down, change direction, bend, or twist. Without friction nothing would ever happen. Friction can oppose motion or it can make it difficult for an object to move across a surface. Friction both helps an hinders every thing we do.the object would not move without frictionThe friction acts in the opposite direction to that of direction of motion.So friction slows the object and if no external force is applied the object will come to stop.Friction is a force that opposes the direction of motion between two materials. It is parallel to the surface your object is touching. Friction depends on the coefficient of friction and the normal force (force exerted perpendicular to the surface your object is on; opposes gravity on a flat surface). There are two kinds of friction: static and kinetic. Static friction must be overcome in order to move an object. Once the object is in motion the friction acting on it is called kinetic. Static friction has a threshold of force that is needed to get the object moving but once the object is in motion it can be moved at a constant velocity with less force required.
There are different kinds of waves... sound, ocean, surface, longitudinal, and transverse.
the two ways in which a surface can reflect light are regular reflection and diffuse reflection.
Static friction is the force that acts on an object that is not moving. Other kinds of friction include fluid friction and rolling friction.
Does heat affect all kinds of material in the same way?why?(Solid,,Liquid,Gas)
they travel by underwater heat or plate movement which causes a disturbance and cause the water to go into huge movement that can affect all kinds of organic life even on land as well as in the water
Two kinds of body movement are voluntary and involuntary. Voluntary movements are consciously controlled, such as raising an arm to wave. Involuntary movements occur without conscious control, like the beating of the heart.
a kinds of joints that provides limited movement
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what are the two kinds of shapes
Hydrogen And Helium
it kinds of destroyes it
weight
There are four main kinds of changes that can affect the earth's surface: 1)Earthquake 2)Flood 3)Valcano 4)Temperature
Craters
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Rock fall & Landslides