The range of audible frequencies varries from 20Hz to 20kHz. If the speed of sound is 340m/s , what is the corresponding rage of wavelength?

The plum pudding model of the atom states that ?

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine