What should you include in a web-based form to limit the number of characters, or provide punctuation to guide the user to properly format data?
A. required fields
B. an input mask
C. HTML5 tags
D. multiple, sequential form pages
Answer: B
Physics & Space Science
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The extrasolar planets are found mainly by observing the ________ shifts of their stars
Fill in the blank(s) with correct word
Physics & Space Science
Photon A has an energy of 3.3 × 10^–19 J. Photon B has 4 times the frequency of Photon A. What is the energy of Photon B?
a. 8.3E–20 J b. 1.7E–19 J c. 1.3E–18 J d. 6.6E–19 J e. 5.3E–18 J
Physics & Space Science
At what frequency will a 12-?F capacitor have a reactance XC = 300 ??
a. 44 Hz b. 88 Hz c. 180 Hz d. 350 Hz e. 280 Hz
Physics & Space Science
The far side of the Moon
a. has never been seen. b. has more craters than the near side. c. looks just like the near side. d. is always dark.
Physics & Space Science