Calculate the kinetic energy of a paper clip shot from a slingshot. The paper clip's mass is 0.01 kg, and its velocity is 10 m/s.

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Plants use the energy from the sun to convert a) water into sugar. b) carbon dioxide into sugar. eliminate c) carbon dioxide into water. d) oxygen into carbon dioxide.