Carlos uses one golf ball to set another golf ball in motion. The following diagram
shows how Carlos designs his experiment.
Carlos releases the ball on the string from
different heights. Each time, the first ball
strikes the second ball, which then rolls
down the track. Which force causes the
first ball to swing downward?
A a pull due to gravity
(B a pull from the string
© a push from Carlos's hand
D friction between air and the golf ball
which force causes the first ball to swing downward?

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport