describe the adventages and disadventages of a supermarket using a bar code reader and an RFID reader.

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.

Which task uses a simple parameter?

Adrawing that places all lines parallel to the z axis at an angle from the horizon is 99 ! a. an oblique drawing b. a perspective drawing c. an auxiliary view d. a one-point perspective drawing