The frequency driving an open-closed tube is steadily raised. resonances are heard at 500 hz and 700 hz with none in between. what is the fundamental and next highest harmonic frequency?

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer