When you catch a baseball is the energy gained or lost?

A member of the marching band tunes their trombone inside their school. When they walk out to the field the instrument goes out of tune. What is the best explanation for this? A) The instrument expands or contracts as temperature changes.

A force is always required to move an object from rest

Noah stands 170 meters away from a steep canyon wall. He shouts and hears the echo of his voice one second later. What is the speed of the wave?

What wind turbines to hydroelectric dams and ethanol plants have in common?

What do waves transmit A-depends on the medium B-Sound C-Enrgy D-Matter E-Water

To obtain a learner's license, you must be at least years old.

Whats the role of the suns gravity in the solar system

What is the definition for chemical change

What is the asthenosphere made out of? a. Solid Rock b. Liquid Rock c. Liquid Iron d. Solid Iron

An atom of nitrogen has five valence electrons. How could a nitrogen atom become more chemically stable