An x-ray tube gives electrons constant acceleration over a distance of 16 cm . if their final speed is 2.0×107 m/s , what are the electrons' acceleration?

True or false: the revolution of the earth creates day and night as it rotates around the sun

The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity