Newton's laws of motion work best for objects under which conditions.
a. very slow and fast moving. b. very large and slow moving. c. very small and slow moving. d. very large and fast moving.

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

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