Amanda, a teacher, is preparing a presentation for a physics class. Which three of these examples should she use to illustrate action-at-a-distance forces? small magnets stuck on a refrigerator door
a car coming to a halt when the brakes are applied
the moon in orbit around the earth
bits of paper sticking to a comb
a football kicked up into the air

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Which of these is a benefit of using objects in a powerpoint presentation? a. collaborators can create the external files while you create and edit the slide show. b. you can easily change the theme and design of the presentation. c. you can have older data in the source file while having up-to-date data in the presentation. d. collaborators can easily share the presentation.

What is a loop? a. a collection of function definitions at the top of a program b. a line of code that defines a variable and assigns it a value c. a program that opens the turtle graphics window d. a block of code that repeats a specific number of times