Iwill give you brainilestwhich of the following statements  best  describes chemical weathering?               a.  it's the process by which rocks and minerals undergo changes in their composition.      b.  it always results in dome-shaped formations.      c.  it's the type of weathering in which rocks and minerals break down into smaller pieces.      d.  it happens only in cool environments.

This is the substance(s) formed in a chemical reaction.

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?