A student is standing 8 m from a roaring truck engine that is measured at 20 dB. The student moves 4 m closer to
the engine. What is the measured sound intensity at the new distance?
dB

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion