Physics, 04.02.2021 07:40 beccadoyle0809
Which type of scanner uses X-rays, and why?
A. Computer scanners, because X-rays release electrons via the
photoelectric effect
B. Bar-code scanners, because X-rays produce a pattern of reflected
light when they shine on a pattern of black-and-white images
C. Security baggage scanners, because X-rays either pass through or
are absorbed by the objects in the baggage, creating an image of
the objects
D. Bar-code scanners, because X-rays are low-energy waves, making
it safe for the machine operators
+
SUBMIT
Answers: 2
Physics, 22.06.2019 02:00
Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.
Answers: 2
Physics, 22.06.2019 10:30
J. j. thomson’s experiment disproved the theory that an atom
Answers: 3
Physics, 22.06.2019 18:30
What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane
Answers: 3
Physics, 22.06.2019 22:30
Compare the patterns of the two waves shown in the image. which statement is true about these waves?
Answers: 1
Which type of scanner uses X-rays, and why?
A. Computer scanners, because X-rays release electron...
Geography, 01.12.2019 06:31
Mathematics, 01.12.2019 06:31
English, 01.12.2019 06:31
Social Studies, 01.12.2019 06:31
English, 01.12.2019 06:31
History, 01.12.2019 06:31
English, 01.12.2019 06:31