Which statement is true about the work done in lifting a box? Group of answer choices D. The energy of the lifter remains constant.

C. The energy of the box remains constant.

B. Energy is transferred to the lifter from the box.

A. Energy is transferred to the box from the lifter.

Ain is , is 's of ? 0.62 0.79 1.27 1.50

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.