Which action could a student take to produce a longitudinal wave with a large amplitude? A. Stand still as possible
B. Light a candle
C. Bang on a drum
D. Drop a pebble in a pond

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?