Consider two waves on the same vibrating string. Which of the following statements are true: (a) two different waves might have different amplitudes, (b) two different waves might have different frequencies, (c) two different waves might have different wave speeds, (d) two different waves with the same frequency might have different wavelengths.

Which statement about covalent bonds is true

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j