When a car with bright headlights comes toward you at night, you should: ?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

Estimate of the number of stars in our galaxy

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the