What is a frequency of a ships whistle if the velocity of sound is 340 meters/ second and the wave length is 1.70? A.)200 hertz
B.)253hertz
C.)340hertz
D.)532hertz

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”

Which best describes the weak nuclear force? it maintains attraction between the m ecules in liquids. it attracts the nucleus of one atom to the nucleus of another atom. it pulls all matter in the universe together it keeps particles that make up protons and neutrons together

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy