Light from a point source located at the origin gets reflected parallel to the x-axis from a large concave mirror. for a constant, a, the equation describing the shape of the mirror on the x-y plane is (a) y2axa (b) y22ax+a ( c) xay+α' (d) x22ay

What do you think car designers do if the damage caused by a crash test is too severe?

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air