A harmonic wave travels in a wire with amplitude 3. 66 mm, wavelength 2. 17 m, and

frequency 615 Hz.

What is the speed with which the wave

travels?

Answer in units of m/s.

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number =7, there will be how many permitted orbital magnetic quantum numbers allowed? a. 6 b. 7 c. 11 d. 15