Drag the correct label to each event. each label can be used more than once.
identify each event as the result of mechanical weathering or chemical weathering.
mechanical weathering
chemical weathering
the minerals in a marble statue react
with water to form acids and pores in
the structure.
a piece of rock crumbles after being
constantly thrashed by strong waves.
industrial runoff forms cracks in a
rocky structure in its path.
the rocks in a region are streaked
orange after being exposed to
repeated rains.
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Air is held within a frictionless piston-cylinder container, which is oriented vertically. the mass of the piston is 0.45 kg and the cross-sectional area is 0.0030 m2. initially (state 1) the pressure of the gas is sufficient to support the weight of the piston as well as the force exerted by the atmospheric pressure ( 101.32 kpa). the volume occupied by the air within the cylinder in state 1 is 1.00 liter. one end of a spring (with spring constant k = 1000 n/m) is attached to the top of the piston, while the other end of the spring is attached to a stage that can move vertically. initially the spring is undeflected and therefore exerts no force. then the stage is then moved quasistatically downward a distance of 10.0 cm, at which point the system reaches state 2. the piston-cylinder is not insulated; rather it remains in diathermal contact with the surroundings, which are at a constant temperature of 300 k. what is the change of pressure within the container?

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

Blank liquids and gases exert a buoyant force on objects placed in them