The assessment technique used by health care providers that utilizes a stethoscope to listen to lung sounds is called a. palpation. b. percussion. c. observation. d. auscultation.

D. auscultation.

Explanation: In auscultation, the healthcare professional can listen to sounds that are produced in the body. For example, he or she may use a stethoscope to listen to the lungs and hear the patient’s breath sounds. Patients without any disease process occurring in the lungs should have clear breath sounds. In a patient who has an infection or has fluid in the lungs, the healthcare professional hears crackles and noises within the lungs. Some sounds, like cracking joints, can be heard without a stethoscope... PF

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m