The majority of household waste in the united states is thrown away. the most effective way to reduce household waste would be to a) recycle more. b) use less goods. c) compost food scraps. d) burn all paper waste.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Which best represents the law of conservation of mass ?