Two substances, x and y, have retention times of 8.20 and 8.33 min, respectively, on a 20.0 cm column. an unretained species passes through the column in 0.65 min. the peaks widths (at base) x and y are 0.56 and 0.61 min, respectively. 3.4 the column resolution the average number of plates in the column. the plate height

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.