In the design of a control mechanism, the vertical slotted guide is moving with a constant velocity x˙ = 17 in./sec during the interval of motion from x = −7 in. to x = +7 in. for the instant when x = 4 in., calculate the n- and t-components of acceleration of the pin p, which is confined to move in the parabolic slot. from these results, determine the radius of curvature ρ of the path at this position. verify your result by computing ρ from the expression cited in appendix c/10.

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?