1. what is the frequency, in hertz, of a signal that repeats 60,000 times within one minute?

Robots with telescoping arms are sometimes used to perform tasks (e. g., welding or placing screws) where access may be difficult for other robotic types. during a test run, a robot arm is programmed to extend according to the relationship r = 3 + 0.5cos(4θ) and the arm rotates according to the relationship θ=−π4t2+πt , where r is in feet, θ is in radians, and t is in seconds. use a computer program to plot the path of tip a in x and y coordinates for 0 ≤ t ≤ 4s.

Why is it preferable to code web pages in html format? a. to create more lines code b. to apply general formatting rules c. to display properly as search results in all browsers d. to add meaning to the document

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