Dark matter is a concept that is used to explain the high amount of gravitational force despite a relatively low amount of mass in a given space in the
universe

the high amount of energy given a relatively low amount of velocity in the universe

the low amount of gravitational force despite a relatively high amount of mass in a given space in the
universe

the low amount of energy given a relatively high amount of velocity in the universe

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.