Sam is investigating the time it takes an electric motor to lift different matters. The table shows the time is took to lift different masses: 5g-1.5s 10g-3.0s 15g-4.5s 20g-6.0s 25g-7.5s. State the name of the store that has more energy at the end than it had at the start.

the answer to this is proletariats.

hope this : )

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

the doppler effect is used by weather forecasters to measure 

moving clouds