An accelerometer is a device that uses the extension of a spring to measure acceleration in terms of earth's gravitational acceleration (g). what is the approximate acceleration if this accelerometer spring is extended just 0.43 centimeters? . a) 0.24 g. b) 0.80 g. c) 2.00 g. d) 2.40 g

real, smaller and upside-down.   so the answer should be b.

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