Describe how web designers use font families, backup fonts, and embedded fonts in a website.
What will be an ideal response?
Web designers use CSS to specify afont familyor afont stack, which identifies the preferred font as well as backup fonts. If a browser cannot locate the specified font used on a webpage, it will replace it with the next availablebackup fontin the stack. Including a generic serif or sans serif font, which all browsers and devices can interpret, as the last backup font in the stack ensures that all browsers can display your webpage content.?Another method web designers use is to includeembedded fontsin the website. Embedded fonts are identified in the CSS for the webpage and must be downloaded to the user's device before the webpage text can appear. Embedded fonts often increase the time it takes for a page to load. When using embedded fonts, web designers often will use a tool such as Google Web Font Loader to specify backup fonts that display while the embedded fonts download. Use embedded fonts sparingly, such as for headings or other font choices where branding and design matter more than readability or speed of downloading.
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Can work be done on a system if there is no motion?
A) Yes, since motion is only relative. B) Yes, if the sum of the external forces is zero. C) Yes, if an external force is acting on the system. D) No, since a system which is not moving has no energy. E) No, since work involves a non-zero displacement.
The wavelength of a periodic wave is 0.750 m. If the frequency is 365 Hz, then what is the angular frequency, 
of the wave?
A. 
B. 
C. 
D. 
E. 
The mass of a proton is 1.6726 × 10-27 kg and the mass of a neutron is 1.6606 × 10-27 kg. A proton captures a neutron forming a deuterium nucleus. One would expect the mass of this nucleus to be
A) equal to (1.6726 + 1.6606 ) × 10-27 kg. B) less than (1.6726 + 1.6606 ) × 10-27 kg. C) greater than (1.6726 + 1.6606 ) × 10-27 kg.
If you jump vertically while inside a fast-moving train that is slowing down, you land
A) a bit ahead of your original position. B) at your original position. C) a bit behind your original position.