As a young boy swings a yo-yo parallel to the ground above his head. The yo-yo has a centripetal acceleration of 250 m/s? If the yo-yo's string is 0.50 m long, what is the yo-yo's tangential speed?

What is the frequency of a light wave with a wavelength of 620nm

Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages