The majority of the x-ray photons produced are ___.

A sample of oxygen gas is collected using the water displacement method on a 25°C day. The total ambient pressure is 101.5 kPa, what is the partial pressure of oxygen in the container?

X-rays were discovered on which of the following dates?

Which of the following terms is used to describe the area of the focal spot that is projected out of the tube toward the patient?

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Potential difference is measured using which of the following units?

Which component of the x-ray circuit requires direct current to operate properly?

At a depth of 2.5 meters, all of the above pressure measurements were about the same.

A(n) ____ is a molecule that contains at least two different elements.