Electrons in an x-ray machine are accelerated from rest through a potential difference of 60 000 V. What is the kinetic energy of each of these electrons in eV?
a. 60 eV
b. 96 eV
c. 38 eV
d. 60 keV
e. 120 eV
d
You might also like to view...
In general, the less cratered a moon's surface, the ________ it is
Fill in the blank(s) with correct word
What important role does the ozone layer play in Earth's atmosphere? a. The ozone layer absorbs ultraviolet photons
b. The ozone layer traps in infared radiation. c. The ozone layer produces water vapor. d. The ozone layer traps in UV radiation. e. The ozone layer produces the oxygen needed for life.
The overall dimming of starlight passing through dust clouds is called ________
Fill in the blank(s) with correct word
Which statement about motion in the universe is not true?
A) The mysterious dark matter is the fastest-moving material in the universe. B) Some stars in the Milky Way Galaxy are moving toward us and others are moving away from us. C) Except for a few nearby galaxies, all other galaxies are moving away from us. D) Your speed of rotation around Earth's axis is faster if you live near the equator than if you live near the North Pole.