What should a person do to reduce the risk of developing osteoporosis if it runs in the family? Regularly engage in weight-bearing activities.

Decrease warm-up time before workouts.

Consume more red meat and high-fat foods.

Increase cool-down time after workouts.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.

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